2018-07-04 03:12:37 +08:00
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=-bmi,-tbm,-bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X86,NOBMI2,X86-NOBMI2,FALLBACK0,X86-FALLBACK0
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; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=+bmi,-tbm,-bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X86,NOBMI2,X86-NOBMI2,FALLBACK1,X86-FALLBACK1
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; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=+bmi,+tbm,-bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X86,NOBMI2,X86-NOBMI2,FALLBACK2,X86-FALLBACK2
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; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=+bmi,+tbm,+bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X86,BMI2,X86-BMI2,FALLBACK3,X86-FALLBACK3
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; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=+bmi,-tbm,+bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X86,BMI2,X86-BMI2,FALLBACK4,X86-FALLBACK4
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; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=-bmi,-tbm,-bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X64,NOBMI2,X64-NOBMI2,FALLBACK0,X64-FALLBACK0
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; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi,-tbm,-bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X64,NOBMI2,X64-NOBMI2,FALLBACK1,X64-FALLBACK1
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; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi,+tbm,-bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X64,NOBMI2,X64-NOBMI2,FALLBACK2,X64-FALLBACK2
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; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi,+tbm,+bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X64,BMI2,X64-BMI2,FALLBACK3,X64-FALLBACK3
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; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi,-tbm,+bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X64,BMI2,X64-BMI2,FALLBACK4,X64-FALLBACK4
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; Patterns:
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; c) x & (-1 >> y)
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; d) x << y >> y
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; are equivalent, but we prefer the second variant if we have BMI2.
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; We do not test the variant where y = (32 - z), because that is BMI2's BZHI.
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; ---------------------------------------------------------------------------- ;
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; 8-bit
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; ---------------------------------------------------------------------------- ;
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define i8 @clear_highbits8_c0(i8 %val, i8 %numhighbits) nounwind {
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; X86-LABEL: clear_highbits8_c0:
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; X86: # %bb.0:
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; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
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2018-07-10 03:06:42 +08:00
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; X86-NEXT: movb {{[0-9]+}}(%esp), %al
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; X86-NEXT: shlb %cl, %al
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2018-07-04 03:12:37 +08:00
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; X86-NEXT: shrb %cl, %al
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; X86-NEXT: retl
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;
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; X64-LABEL: clear_highbits8_c0:
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; X64: # %bb.0:
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; X64-NEXT: movl %esi, %ecx
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2018-07-10 03:06:42 +08:00
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; X64-NEXT: movl %edi, %eax
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2018-09-20 02:59:08 +08:00
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; X64-NEXT: shlb %cl, %al
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; X64-NEXT: # kill: def $cl killed $cl killed $ecx
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; X64-NEXT: shrb %cl, %al
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; X64-NEXT: # kill: def $al killed $al killed $eax
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2018-07-04 03:12:37 +08:00
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; X64-NEXT: retq
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%mask = lshr i8 -1, %numhighbits
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%masked = and i8 %mask, %val
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ret i8 %masked
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}
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define i8 @clear_highbits8_c2_load(i8* %w, i8 %numhighbits) nounwind {
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; X86-LABEL: clear_highbits8_c2_load:
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; X86: # %bb.0:
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; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
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2018-07-10 03:06:42 +08:00
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: movb (%eax), %al
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; X86-NEXT: shlb %cl, %al
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2018-07-04 03:12:37 +08:00
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; X86-NEXT: shrb %cl, %al
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; X86-NEXT: retl
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;
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; X64-LABEL: clear_highbits8_c2_load:
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; X64: # %bb.0:
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; X64-NEXT: movl %esi, %ecx
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2018-07-10 03:06:42 +08:00
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; X64-NEXT: movb (%rdi), %al
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; X64-NEXT: shlb %cl, %al
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; X64-NEXT: # kill: def $cl killed $cl killed $ecx
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2018-07-04 03:12:37 +08:00
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; X64-NEXT: shrb %cl, %al
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; X64-NEXT: retq
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%val = load i8, i8* %w
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%mask = lshr i8 -1, %numhighbits
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%masked = and i8 %mask, %val
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ret i8 %masked
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}
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define i8 @clear_highbits8_c4_commutative(i8 %val, i8 %numhighbits) nounwind {
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; X86-LABEL: clear_highbits8_c4_commutative:
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; X86: # %bb.0:
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; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
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2018-07-10 03:06:42 +08:00
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; X86-NEXT: movb {{[0-9]+}}(%esp), %al
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; X86-NEXT: shlb %cl, %al
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2018-07-04 03:12:37 +08:00
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; X86-NEXT: shrb %cl, %al
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; X86-NEXT: retl
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;
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; X64-LABEL: clear_highbits8_c4_commutative:
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; X64: # %bb.0:
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; X64-NEXT: movl %esi, %ecx
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2018-07-10 03:06:42 +08:00
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; X64-NEXT: movl %edi, %eax
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2018-09-20 02:59:08 +08:00
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; X64-NEXT: shlb %cl, %al
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; X64-NEXT: # kill: def $cl killed $cl killed $ecx
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; X64-NEXT: shrb %cl, %al
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; X64-NEXT: # kill: def $al killed $al killed $eax
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2018-07-04 03:12:37 +08:00
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; X64-NEXT: retq
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%mask = lshr i8 -1, %numhighbits
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%masked = and i8 %val, %mask ; swapped order
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ret i8 %masked
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}
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; ---------------------------------------------------------------------------- ;
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; 16-bit
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; ---------------------------------------------------------------------------- ;
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define i16 @clear_highbits16_c0(i16 %val, i16 %numhighbits) nounwind {
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; X86-NOBMI2-LABEL: clear_highbits16_c0:
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; X86-NOBMI2: # %bb.0:
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; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
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2018-07-10 03:06:42 +08:00
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; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NOBMI2-NEXT: shll %cl, %eax
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; X86-NOBMI2-NEXT: movzwl %ax, %eax
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2018-07-04 03:12:37 +08:00
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; X86-NOBMI2-NEXT: shrl %cl, %eax
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; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
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; X86-NOBMI2-NEXT: retl
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;
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; X86-BMI2-LABEL: clear_highbits16_c0:
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; X86-BMI2: # %bb.0:
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; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
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2018-07-10 03:06:42 +08:00
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; X86-BMI2-NEXT: shlxl %eax, {{[0-9]+}}(%esp), %ecx
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; X86-BMI2-NEXT: movzwl %cx, %ecx
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2018-07-04 03:12:37 +08:00
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; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax
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; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
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; X86-BMI2-NEXT: retl
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;
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; X64-NOBMI2-LABEL: clear_highbits16_c0:
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; X64-NOBMI2: # %bb.0:
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; X64-NOBMI2-NEXT: movl %esi, %ecx
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2018-07-10 03:06:42 +08:00
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; X64-NOBMI2-NEXT: shll %cl, %edi
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; X64-NOBMI2-NEXT: movzwl %di, %eax
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; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
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2018-07-04 03:12:37 +08:00
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; X64-NOBMI2-NEXT: shrl %cl, %eax
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; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
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; X64-NOBMI2-NEXT: retq
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;
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; X64-BMI2-LABEL: clear_highbits16_c0:
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; X64-BMI2: # %bb.0:
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2018-07-10 03:06:42 +08:00
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; X64-BMI2-NEXT: shlxl %esi, %edi, %eax
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; X64-BMI2-NEXT: movzwl %ax, %eax
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2018-07-04 03:12:37 +08:00
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; X64-BMI2-NEXT: shrxl %esi, %eax, %eax
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; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
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; X64-BMI2-NEXT: retq
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%mask = lshr i16 -1, %numhighbits
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%masked = and i16 %mask, %val
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ret i16 %masked
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}
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define i16 @clear_highbits16_c1_indexzext(i16 %val, i8 %numhighbits) nounwind {
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; X86-NOBMI2-LABEL: clear_highbits16_c1_indexzext:
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; X86-NOBMI2: # %bb.0:
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; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
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2018-07-10 03:06:42 +08:00
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; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NOBMI2-NEXT: shll %cl, %eax
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; X86-NOBMI2-NEXT: movzwl %ax, %eax
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2018-07-04 03:12:37 +08:00
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; X86-NOBMI2-NEXT: shrl %cl, %eax
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; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
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; X86-NOBMI2-NEXT: retl
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;
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; X86-BMI2-LABEL: clear_highbits16_c1_indexzext:
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; X86-BMI2: # %bb.0:
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; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
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2018-07-10 03:06:42 +08:00
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; X86-BMI2-NEXT: shlxl %eax, {{[0-9]+}}(%esp), %ecx
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; X86-BMI2-NEXT: movzwl %cx, %ecx
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2018-07-04 03:12:37 +08:00
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; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax
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; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
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; X86-BMI2-NEXT: retl
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;
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; X64-NOBMI2-LABEL: clear_highbits16_c1_indexzext:
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; X64-NOBMI2: # %bb.0:
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; X64-NOBMI2-NEXT: movl %esi, %ecx
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2018-07-10 03:06:42 +08:00
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; X64-NOBMI2-NEXT: shll %cl, %edi
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; X64-NOBMI2-NEXT: movzwl %di, %eax
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; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
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2018-07-04 03:12:37 +08:00
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; X64-NOBMI2-NEXT: shrl %cl, %eax
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; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
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; X64-NOBMI2-NEXT: retq
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;
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; X64-BMI2-LABEL: clear_highbits16_c1_indexzext:
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; X64-BMI2: # %bb.0:
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2018-07-10 03:06:42 +08:00
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; X64-BMI2-NEXT: shlxl %esi, %edi, %eax
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; X64-BMI2-NEXT: movzwl %ax, %eax
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2018-07-04 03:12:37 +08:00
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; X64-BMI2-NEXT: shrxl %esi, %eax, %eax
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; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
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; X64-BMI2-NEXT: retq
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%sh_prom = zext i8 %numhighbits to i16
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%mask = lshr i16 -1, %sh_prom
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%masked = and i16 %mask, %val
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ret i16 %masked
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}
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define i16 @clear_highbits16_c2_load(i16* %w, i16 %numhighbits) nounwind {
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; X86-NOBMI2-LABEL: clear_highbits16_c2_load:
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; X86-NOBMI2: # %bb.0:
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; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
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2018-07-10 03:06:42 +08:00
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; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NOBMI2-NEXT: movzwl (%eax), %eax
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; X86-NOBMI2-NEXT: shll %cl, %eax
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; X86-NOBMI2-NEXT: movzwl %ax, %eax
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2018-07-04 03:12:37 +08:00
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; X86-NOBMI2-NEXT: shrl %cl, %eax
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; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
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; X86-NOBMI2-NEXT: retl
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;
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; X86-BMI2-LABEL: clear_highbits16_c2_load:
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; X86-BMI2: # %bb.0:
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; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
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2018-07-10 03:06:42 +08:00
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; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-BMI2-NEXT: movzwl (%ecx), %ecx
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; X86-BMI2-NEXT: shlxl %eax, %ecx, %ecx
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; X86-BMI2-NEXT: movzwl %cx, %ecx
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; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax
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2018-07-04 03:12:37 +08:00
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; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
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; X86-BMI2-NEXT: retl
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;
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; X64-NOBMI2-LABEL: clear_highbits16_c2_load:
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; X64-NOBMI2: # %bb.0:
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; X64-NOBMI2-NEXT: movl %esi, %ecx
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2018-07-10 03:06:42 +08:00
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; X64-NOBMI2-NEXT: movzwl (%rdi), %eax
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; X64-NOBMI2-NEXT: shll %cl, %eax
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; X64-NOBMI2-NEXT: movzwl %ax, %eax
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; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
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2018-07-04 03:12:37 +08:00
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; X64-NOBMI2-NEXT: shrl %cl, %eax
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; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
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; X64-NOBMI2-NEXT: retq
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;
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; X64-BMI2-LABEL: clear_highbits16_c2_load:
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; X64-BMI2: # %bb.0:
|
2018-07-10 03:06:42 +08:00
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; X64-BMI2-NEXT: movzwl (%rdi), %eax
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; X64-BMI2-NEXT: shlxl %esi, %eax, %eax
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; X64-BMI2-NEXT: movzwl %ax, %eax
|
2018-07-04 03:12:37 +08:00
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; X64-BMI2-NEXT: shrxl %esi, %eax, %eax
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; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
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; X64-BMI2-NEXT: retq
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%val = load i16, i16* %w
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|
%mask = lshr i16 -1, %numhighbits
|
|
|
|
|
%masked = and i16 %mask, %val
|
|
|
|
|
ret i16 %masked
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
define i16 @clear_highbits16_c3_load_indexzext(i16* %w, i8 %numhighbits) nounwind {
|
|
|
|
|
; X86-NOBMI2-LABEL: clear_highbits16_c3_load_indexzext:
|
|
|
|
|
; X86-NOBMI2: # %bb.0:
|
|
|
|
|
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
|
2018-07-10 03:06:42 +08:00
|
|
|
; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: movzwl (%eax), %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: shll %cl, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: movzwl %ax, %eax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X86-NOBMI2-NEXT: shrl %cl, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
|
|
|
|
|
; X86-NOBMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X86-BMI2-LABEL: clear_highbits16_c3_load_indexzext:
|
|
|
|
|
; X86-BMI2: # %bb.0:
|
|
|
|
|
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
|
2018-07-10 03:06:42 +08:00
|
|
|
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
|
|
|
|
|
; X86-BMI2-NEXT: movzwl (%ecx), %ecx
|
|
|
|
|
; X86-BMI2-NEXT: shlxl %eax, %ecx, %ecx
|
|
|
|
|
; X86-BMI2-NEXT: movzwl %cx, %ecx
|
|
|
|
|
; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
|
|
|
|
|
; X86-BMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X64-NOBMI2-LABEL: clear_highbits16_c3_load_indexzext:
|
|
|
|
|
; X64-NOBMI2: # %bb.0:
|
|
|
|
|
; X64-NOBMI2-NEXT: movl %esi, %ecx
|
2018-07-10 03:06:42 +08:00
|
|
|
; X64-NOBMI2-NEXT: movzwl (%rdi), %eax
|
|
|
|
|
; X64-NOBMI2-NEXT: shll %cl, %eax
|
|
|
|
|
; X64-NOBMI2-NEXT: movzwl %ax, %eax
|
|
|
|
|
; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-NOBMI2-NEXT: shrl %cl, %eax
|
|
|
|
|
; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
|
|
|
|
|
; X64-NOBMI2-NEXT: retq
|
|
|
|
|
;
|
|
|
|
|
; X64-BMI2-LABEL: clear_highbits16_c3_load_indexzext:
|
|
|
|
|
; X64-BMI2: # %bb.0:
|
2018-07-10 03:06:42 +08:00
|
|
|
; X64-BMI2-NEXT: movzwl (%rdi), %eax
|
|
|
|
|
; X64-BMI2-NEXT: shlxl %esi, %eax, %eax
|
|
|
|
|
; X64-BMI2-NEXT: movzwl %ax, %eax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-BMI2-NEXT: shrxl %esi, %eax, %eax
|
|
|
|
|
; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
|
|
|
|
|
; X64-BMI2-NEXT: retq
|
|
|
|
|
%val = load i16, i16* %w
|
|
|
|
|
%sh_prom = zext i8 %numhighbits to i16
|
|
|
|
|
%mask = lshr i16 -1, %sh_prom
|
|
|
|
|
%masked = and i16 %mask, %val
|
|
|
|
|
ret i16 %masked
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
define i16 @clear_highbits16_c4_commutative(i16 %val, i16 %numhighbits) nounwind {
|
|
|
|
|
; X86-NOBMI2-LABEL: clear_highbits16_c4_commutative:
|
|
|
|
|
; X86-NOBMI2: # %bb.0:
|
|
|
|
|
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
|
2018-07-10 03:06:42 +08:00
|
|
|
; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: shll %cl, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: movzwl %ax, %eax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X86-NOBMI2-NEXT: shrl %cl, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
|
|
|
|
|
; X86-NOBMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X86-BMI2-LABEL: clear_highbits16_c4_commutative:
|
|
|
|
|
; X86-BMI2: # %bb.0:
|
|
|
|
|
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
|
2018-07-10 03:06:42 +08:00
|
|
|
; X86-BMI2-NEXT: shlxl %eax, {{[0-9]+}}(%esp), %ecx
|
|
|
|
|
; X86-BMI2-NEXT: movzwl %cx, %ecx
|
2018-07-04 03:12:37 +08:00
|
|
|
; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax
|
|
|
|
|
; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
|
|
|
|
|
; X86-BMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X64-NOBMI2-LABEL: clear_highbits16_c4_commutative:
|
|
|
|
|
; X64-NOBMI2: # %bb.0:
|
|
|
|
|
; X64-NOBMI2-NEXT: movl %esi, %ecx
|
2018-07-10 03:06:42 +08:00
|
|
|
; X64-NOBMI2-NEXT: shll %cl, %edi
|
|
|
|
|
; X64-NOBMI2-NEXT: movzwl %di, %eax
|
|
|
|
|
; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-NOBMI2-NEXT: shrl %cl, %eax
|
|
|
|
|
; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
|
|
|
|
|
; X64-NOBMI2-NEXT: retq
|
|
|
|
|
;
|
|
|
|
|
; X64-BMI2-LABEL: clear_highbits16_c4_commutative:
|
|
|
|
|
; X64-BMI2: # %bb.0:
|
2018-07-10 03:06:42 +08:00
|
|
|
; X64-BMI2-NEXT: shlxl %esi, %edi, %eax
|
|
|
|
|
; X64-BMI2-NEXT: movzwl %ax, %eax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-BMI2-NEXT: shrxl %esi, %eax, %eax
|
|
|
|
|
; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
|
|
|
|
|
; X64-BMI2-NEXT: retq
|
|
|
|
|
%mask = lshr i16 -1, %numhighbits
|
|
|
|
|
%masked = and i16 %val, %mask ; swapped order
|
|
|
|
|
ret i16 %masked
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; ---------------------------------------------------------------------------- ;
|
|
|
|
|
; 32-bit
|
|
|
|
|
; ---------------------------------------------------------------------------- ;
|
|
|
|
|
|
|
|
|
|
define i32 @clear_highbits32_c0(i32 %val, i32 %numhighbits) nounwind {
|
|
|
|
|
; X86-NOBMI2-LABEL: clear_highbits32_c0:
|
|
|
|
|
; X86-NOBMI2: # %bb.0:
|
|
|
|
|
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
|
2018-07-10 03:06:42 +08:00
|
|
|
; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: shll %cl, %eax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X86-NOBMI2-NEXT: shrl %cl, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X86-BMI2-LABEL: clear_highbits32_c0:
|
|
|
|
|
; X86-BMI2: # %bb.0:
|
|
|
|
|
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
|
2018-07-10 03:06:42 +08:00
|
|
|
; X86-BMI2-NEXT: shlxl %eax, {{[0-9]+}}(%esp), %ecx
|
2018-07-04 03:12:37 +08:00
|
|
|
; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax
|
|
|
|
|
; X86-BMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X64-NOBMI2-LABEL: clear_highbits32_c0:
|
|
|
|
|
; X64-NOBMI2: # %bb.0:
|
|
|
|
|
; X64-NOBMI2-NEXT: movl %esi, %ecx
|
2018-07-10 03:06:42 +08:00
|
|
|
; X64-NOBMI2-NEXT: movl %edi, %eax
|
2018-09-20 02:59:08 +08:00
|
|
|
; X64-NOBMI2-NEXT: shll %cl, %eax
|
|
|
|
|
; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
|
|
|
|
|
; X64-NOBMI2-NEXT: shrl %cl, %eax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-NOBMI2-NEXT: retq
|
|
|
|
|
;
|
|
|
|
|
; X64-BMI2-LABEL: clear_highbits32_c0:
|
|
|
|
|
; X64-BMI2: # %bb.0:
|
2018-07-10 03:06:42 +08:00
|
|
|
; X64-BMI2-NEXT: shlxl %esi, %edi, %eax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-BMI2-NEXT: shrxl %esi, %eax, %eax
|
|
|
|
|
; X64-BMI2-NEXT: retq
|
|
|
|
|
%mask = lshr i32 -1, %numhighbits
|
|
|
|
|
%masked = and i32 %mask, %val
|
|
|
|
|
ret i32 %masked
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
define i32 @clear_highbits32_c1_indexzext(i32 %val, i8 %numhighbits) nounwind {
|
|
|
|
|
; X86-NOBMI2-LABEL: clear_highbits32_c1_indexzext:
|
|
|
|
|
; X86-NOBMI2: # %bb.0:
|
|
|
|
|
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
|
2018-07-10 03:06:42 +08:00
|
|
|
; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: shll %cl, %eax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X86-NOBMI2-NEXT: shrl %cl, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X86-BMI2-LABEL: clear_highbits32_c1_indexzext:
|
|
|
|
|
; X86-BMI2: # %bb.0:
|
|
|
|
|
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
|
2018-07-10 03:06:42 +08:00
|
|
|
; X86-BMI2-NEXT: shlxl %eax, {{[0-9]+}}(%esp), %ecx
|
2018-07-04 03:12:37 +08:00
|
|
|
; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax
|
|
|
|
|
; X86-BMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X64-NOBMI2-LABEL: clear_highbits32_c1_indexzext:
|
|
|
|
|
; X64-NOBMI2: # %bb.0:
|
|
|
|
|
; X64-NOBMI2-NEXT: movl %esi, %ecx
|
2018-07-10 03:06:42 +08:00
|
|
|
; X64-NOBMI2-NEXT: movl %edi, %eax
|
2018-09-20 02:59:08 +08:00
|
|
|
; X64-NOBMI2-NEXT: shll %cl, %eax
|
|
|
|
|
; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
|
|
|
|
|
; X64-NOBMI2-NEXT: shrl %cl, %eax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-NOBMI2-NEXT: retq
|
|
|
|
|
;
|
|
|
|
|
; X64-BMI2-LABEL: clear_highbits32_c1_indexzext:
|
|
|
|
|
; X64-BMI2: # %bb.0:
|
2018-07-10 03:06:42 +08:00
|
|
|
; X64-BMI2-NEXT: shlxl %esi, %edi, %eax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-BMI2-NEXT: shrxl %esi, %eax, %eax
|
|
|
|
|
; X64-BMI2-NEXT: retq
|
|
|
|
|
%sh_prom = zext i8 %numhighbits to i32
|
|
|
|
|
%mask = lshr i32 -1, %sh_prom
|
|
|
|
|
%masked = and i32 %mask, %val
|
|
|
|
|
ret i32 %masked
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
define i32 @clear_highbits32_c2_load(i32* %w, i32 %numhighbits) nounwind {
|
|
|
|
|
; X86-NOBMI2-LABEL: clear_highbits32_c2_load:
|
|
|
|
|
; X86-NOBMI2: # %bb.0:
|
|
|
|
|
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
|
2018-07-10 03:06:42 +08:00
|
|
|
; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: movl (%eax), %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: shll %cl, %eax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X86-NOBMI2-NEXT: shrl %cl, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X86-BMI2-LABEL: clear_highbits32_c2_load:
|
|
|
|
|
; X86-BMI2: # %bb.0:
|
2018-07-10 03:06:42 +08:00
|
|
|
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
|
|
|
|
|
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
|
|
|
|
|
; X86-BMI2-NEXT: shlxl %ecx, (%eax), %eax
|
|
|
|
|
; X86-BMI2-NEXT: shrxl %ecx, %eax, %eax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X86-BMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X64-NOBMI2-LABEL: clear_highbits32_c2_load:
|
|
|
|
|
; X64-NOBMI2: # %bb.0:
|
|
|
|
|
; X64-NOBMI2-NEXT: movl %esi, %ecx
|
2018-07-10 03:06:42 +08:00
|
|
|
; X64-NOBMI2-NEXT: movl (%rdi), %eax
|
|
|
|
|
; X64-NOBMI2-NEXT: shll %cl, %eax
|
|
|
|
|
; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-NOBMI2-NEXT: shrl %cl, %eax
|
|
|
|
|
; X64-NOBMI2-NEXT: retq
|
|
|
|
|
;
|
|
|
|
|
; X64-BMI2-LABEL: clear_highbits32_c2_load:
|
|
|
|
|
; X64-BMI2: # %bb.0:
|
2018-07-10 03:06:42 +08:00
|
|
|
; X64-BMI2-NEXT: shlxl %esi, (%rdi), %eax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-BMI2-NEXT: shrxl %esi, %eax, %eax
|
|
|
|
|
; X64-BMI2-NEXT: retq
|
|
|
|
|
%val = load i32, i32* %w
|
|
|
|
|
%mask = lshr i32 -1, %numhighbits
|
|
|
|
|
%masked = and i32 %mask, %val
|
|
|
|
|
ret i32 %masked
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
define i32 @clear_highbits32_c3_load_indexzext(i32* %w, i8 %numhighbits) nounwind {
|
|
|
|
|
; X86-NOBMI2-LABEL: clear_highbits32_c3_load_indexzext:
|
|
|
|
|
; X86-NOBMI2: # %bb.0:
|
|
|
|
|
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
|
2018-07-10 03:06:42 +08:00
|
|
|
; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: movl (%eax), %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: shll %cl, %eax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X86-NOBMI2-NEXT: shrl %cl, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X86-BMI2-LABEL: clear_highbits32_c3_load_indexzext:
|
|
|
|
|
; X86-BMI2: # %bb.0:
|
2018-07-10 03:06:42 +08:00
|
|
|
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
|
|
|
|
|
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
|
|
|
|
|
; X86-BMI2-NEXT: shlxl %ecx, (%eax), %eax
|
|
|
|
|
; X86-BMI2-NEXT: shrxl %ecx, %eax, %eax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X86-BMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X64-NOBMI2-LABEL: clear_highbits32_c3_load_indexzext:
|
|
|
|
|
; X64-NOBMI2: # %bb.0:
|
|
|
|
|
; X64-NOBMI2-NEXT: movl %esi, %ecx
|
2018-07-10 03:06:42 +08:00
|
|
|
; X64-NOBMI2-NEXT: movl (%rdi), %eax
|
|
|
|
|
; X64-NOBMI2-NEXT: shll %cl, %eax
|
|
|
|
|
; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-NOBMI2-NEXT: shrl %cl, %eax
|
|
|
|
|
; X64-NOBMI2-NEXT: retq
|
|
|
|
|
;
|
|
|
|
|
; X64-BMI2-LABEL: clear_highbits32_c3_load_indexzext:
|
|
|
|
|
; X64-BMI2: # %bb.0:
|
2018-07-10 03:06:42 +08:00
|
|
|
; X64-BMI2-NEXT: shlxl %esi, (%rdi), %eax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-BMI2-NEXT: shrxl %esi, %eax, %eax
|
|
|
|
|
; X64-BMI2-NEXT: retq
|
|
|
|
|
%val = load i32, i32* %w
|
|
|
|
|
%sh_prom = zext i8 %numhighbits to i32
|
|
|
|
|
%mask = lshr i32 -1, %sh_prom
|
|
|
|
|
%masked = and i32 %mask, %val
|
|
|
|
|
ret i32 %masked
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
define i32 @clear_highbits32_c4_commutative(i32 %val, i32 %numhighbits) nounwind {
|
|
|
|
|
; X86-NOBMI2-LABEL: clear_highbits32_c4_commutative:
|
|
|
|
|
; X86-NOBMI2: # %bb.0:
|
|
|
|
|
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
|
2018-07-10 03:06:42 +08:00
|
|
|
; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: shll %cl, %eax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X86-NOBMI2-NEXT: shrl %cl, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X86-BMI2-LABEL: clear_highbits32_c4_commutative:
|
|
|
|
|
; X86-BMI2: # %bb.0:
|
|
|
|
|
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
|
2018-07-10 03:06:42 +08:00
|
|
|
; X86-BMI2-NEXT: shlxl %eax, {{[0-9]+}}(%esp), %ecx
|
2018-07-04 03:12:37 +08:00
|
|
|
; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax
|
|
|
|
|
; X86-BMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X64-NOBMI2-LABEL: clear_highbits32_c4_commutative:
|
|
|
|
|
; X64-NOBMI2: # %bb.0:
|
|
|
|
|
; X64-NOBMI2-NEXT: movl %esi, %ecx
|
2018-07-10 03:06:42 +08:00
|
|
|
; X64-NOBMI2-NEXT: movl %edi, %eax
|
2018-09-20 02:59:08 +08:00
|
|
|
; X64-NOBMI2-NEXT: shll %cl, %eax
|
|
|
|
|
; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
|
|
|
|
|
; X64-NOBMI2-NEXT: shrl %cl, %eax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-NOBMI2-NEXT: retq
|
|
|
|
|
;
|
|
|
|
|
; X64-BMI2-LABEL: clear_highbits32_c4_commutative:
|
|
|
|
|
; X64-BMI2: # %bb.0:
|
2018-07-10 03:06:42 +08:00
|
|
|
; X64-BMI2-NEXT: shlxl %esi, %edi, %eax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-BMI2-NEXT: shrxl %esi, %eax, %eax
|
|
|
|
|
; X64-BMI2-NEXT: retq
|
|
|
|
|
%mask = lshr i32 -1, %numhighbits
|
|
|
|
|
%masked = and i32 %val, %mask ; swapped order
|
|
|
|
|
ret i32 %masked
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; ---------------------------------------------------------------------------- ;
|
|
|
|
|
; 64-bit
|
|
|
|
|
; ---------------------------------------------------------------------------- ;
|
|
|
|
|
|
|
|
|
|
define i64 @clear_highbits64_c0(i64 %val, i64 %numhighbits) nounwind {
|
|
|
|
|
; X86-NOBMI2-LABEL: clear_highbits64_c0:
|
|
|
|
|
; X86-NOBMI2: # %bb.0:
|
|
|
|
|
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
|
|
|
|
|
; X86-NOBMI2-NEXT: movl $-1, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: movl $-1, %edx
|
|
|
|
|
; X86-NOBMI2-NEXT: shrl %cl, %edx
|
|
|
|
|
; X86-NOBMI2-NEXT: shrdl %cl, %eax, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: testb $32, %cl
|
|
|
|
|
; X86-NOBMI2-NEXT: je .LBB13_2
|
|
|
|
|
; X86-NOBMI2-NEXT: # %bb.1:
|
|
|
|
|
; X86-NOBMI2-NEXT: movl %edx, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: xorl %edx, %edx
|
|
|
|
|
; X86-NOBMI2-NEXT: .LBB13_2:
|
|
|
|
|
; X86-NOBMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: andl {{[0-9]+}}(%esp), %edx
|
|
|
|
|
; X86-NOBMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X86-BMI2-LABEL: clear_highbits64_c0:
|
|
|
|
|
; X86-BMI2: # %bb.0:
|
|
|
|
|
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
|
|
|
|
|
; X86-BMI2-NEXT: movl $-1, %eax
|
|
|
|
|
; X86-BMI2-NEXT: shrxl %ecx, %eax, %edx
|
|
|
|
|
; X86-BMI2-NEXT: shrdl %cl, %eax, %eax
|
|
|
|
|
; X86-BMI2-NEXT: testb $32, %cl
|
|
|
|
|
; X86-BMI2-NEXT: je .LBB13_2
|
|
|
|
|
; X86-BMI2-NEXT: # %bb.1:
|
|
|
|
|
; X86-BMI2-NEXT: movl %edx, %eax
|
|
|
|
|
; X86-BMI2-NEXT: xorl %edx, %edx
|
|
|
|
|
; X86-BMI2-NEXT: .LBB13_2:
|
|
|
|
|
; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
|
|
|
|
|
; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %edx
|
|
|
|
|
; X86-BMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X64-NOBMI2-LABEL: clear_highbits64_c0:
|
|
|
|
|
; X64-NOBMI2: # %bb.0:
|
2018-07-10 03:06:42 +08:00
|
|
|
; X64-NOBMI2-NEXT: movq %rsi, %rcx
|
|
|
|
|
; X64-NOBMI2-NEXT: movq %rdi, %rax
|
2018-09-20 02:59:08 +08:00
|
|
|
; X64-NOBMI2-NEXT: shlq %cl, %rax
|
|
|
|
|
; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $rcx
|
|
|
|
|
; X64-NOBMI2-NEXT: shrq %cl, %rax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-NOBMI2-NEXT: retq
|
|
|
|
|
;
|
|
|
|
|
; X64-BMI2-LABEL: clear_highbits64_c0:
|
|
|
|
|
; X64-BMI2: # %bb.0:
|
2018-07-10 03:06:42 +08:00
|
|
|
; X64-BMI2-NEXT: shlxq %rsi, %rdi, %rax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-BMI2-NEXT: shrxq %rsi, %rax, %rax
|
|
|
|
|
; X64-BMI2-NEXT: retq
|
|
|
|
|
%mask = lshr i64 -1, %numhighbits
|
|
|
|
|
%masked = and i64 %mask, %val
|
|
|
|
|
ret i64 %masked
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
define i64 @clear_highbits64_c1_indexzext(i64 %val, i8 %numhighbits) nounwind {
|
|
|
|
|
; X86-NOBMI2-LABEL: clear_highbits64_c1_indexzext:
|
|
|
|
|
; X86-NOBMI2: # %bb.0:
|
|
|
|
|
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
|
|
|
|
|
; X86-NOBMI2-NEXT: movl $-1, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: movl $-1, %edx
|
|
|
|
|
; X86-NOBMI2-NEXT: shrl %cl, %edx
|
|
|
|
|
; X86-NOBMI2-NEXT: shrdl %cl, %eax, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: testb $32, %cl
|
|
|
|
|
; X86-NOBMI2-NEXT: je .LBB14_2
|
|
|
|
|
; X86-NOBMI2-NEXT: # %bb.1:
|
|
|
|
|
; X86-NOBMI2-NEXT: movl %edx, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: xorl %edx, %edx
|
|
|
|
|
; X86-NOBMI2-NEXT: .LBB14_2:
|
|
|
|
|
; X86-NOBMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: andl {{[0-9]+}}(%esp), %edx
|
|
|
|
|
; X86-NOBMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X86-BMI2-LABEL: clear_highbits64_c1_indexzext:
|
|
|
|
|
; X86-BMI2: # %bb.0:
|
|
|
|
|
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
|
|
|
|
|
; X86-BMI2-NEXT: movl $-1, %eax
|
|
|
|
|
; X86-BMI2-NEXT: shrxl %ecx, %eax, %edx
|
|
|
|
|
; X86-BMI2-NEXT: shrdl %cl, %eax, %eax
|
|
|
|
|
; X86-BMI2-NEXT: testb $32, %cl
|
|
|
|
|
; X86-BMI2-NEXT: je .LBB14_2
|
|
|
|
|
; X86-BMI2-NEXT: # %bb.1:
|
|
|
|
|
; X86-BMI2-NEXT: movl %edx, %eax
|
|
|
|
|
; X86-BMI2-NEXT: xorl %edx, %edx
|
|
|
|
|
; X86-BMI2-NEXT: .LBB14_2:
|
|
|
|
|
; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
|
|
|
|
|
; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %edx
|
|
|
|
|
; X86-BMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X64-NOBMI2-LABEL: clear_highbits64_c1_indexzext:
|
|
|
|
|
; X64-NOBMI2: # %bb.0:
|
|
|
|
|
; X64-NOBMI2-NEXT: movl %esi, %ecx
|
2018-07-10 03:06:42 +08:00
|
|
|
; X64-NOBMI2-NEXT: movq %rdi, %rax
|
2018-09-20 02:59:08 +08:00
|
|
|
; X64-NOBMI2-NEXT: shlq %cl, %rax
|
|
|
|
|
; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
|
|
|
|
|
; X64-NOBMI2-NEXT: shrq %cl, %rax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-NOBMI2-NEXT: retq
|
|
|
|
|
;
|
|
|
|
|
; X64-BMI2-LABEL: clear_highbits64_c1_indexzext:
|
|
|
|
|
; X64-BMI2: # %bb.0:
|
|
|
|
|
; X64-BMI2-NEXT: # kill: def $esi killed $esi def $rsi
|
2018-07-10 03:06:42 +08:00
|
|
|
; X64-BMI2-NEXT: shlxq %rsi, %rdi, %rax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-BMI2-NEXT: shrxq %rsi, %rax, %rax
|
|
|
|
|
; X64-BMI2-NEXT: retq
|
|
|
|
|
%sh_prom = zext i8 %numhighbits to i64
|
|
|
|
|
%mask = lshr i64 -1, %sh_prom
|
|
|
|
|
%masked = and i64 %mask, %val
|
|
|
|
|
ret i64 %masked
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
define i64 @clear_highbits64_c2_load(i64* %w, i64 %numhighbits) nounwind {
|
|
|
|
|
; X86-NOBMI2-LABEL: clear_highbits64_c2_load:
|
|
|
|
|
; X86-NOBMI2: # %bb.0:
|
|
|
|
|
; X86-NOBMI2-NEXT: pushl %esi
|
|
|
|
|
; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %esi
|
|
|
|
|
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
|
|
|
|
|
; X86-NOBMI2-NEXT: movl $-1, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: movl $-1, %edx
|
|
|
|
|
; X86-NOBMI2-NEXT: shrl %cl, %edx
|
|
|
|
|
; X86-NOBMI2-NEXT: shrdl %cl, %eax, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: testb $32, %cl
|
|
|
|
|
; X86-NOBMI2-NEXT: je .LBB15_2
|
|
|
|
|
; X86-NOBMI2-NEXT: # %bb.1:
|
|
|
|
|
; X86-NOBMI2-NEXT: movl %edx, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: xorl %edx, %edx
|
|
|
|
|
; X86-NOBMI2-NEXT: .LBB15_2:
|
|
|
|
|
; X86-NOBMI2-NEXT: andl (%esi), %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: andl 4(%esi), %edx
|
|
|
|
|
; X86-NOBMI2-NEXT: popl %esi
|
|
|
|
|
; X86-NOBMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X86-BMI2-LABEL: clear_highbits64_c2_load:
|
|
|
|
|
; X86-BMI2: # %bb.0:
|
|
|
|
|
; X86-BMI2-NEXT: pushl %esi
|
|
|
|
|
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi
|
|
|
|
|
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
|
|
|
|
|
; X86-BMI2-NEXT: movl $-1, %eax
|
|
|
|
|
; X86-BMI2-NEXT: shrxl %ecx, %eax, %edx
|
|
|
|
|
; X86-BMI2-NEXT: shrdl %cl, %eax, %eax
|
|
|
|
|
; X86-BMI2-NEXT: testb $32, %cl
|
|
|
|
|
; X86-BMI2-NEXT: je .LBB15_2
|
|
|
|
|
; X86-BMI2-NEXT: # %bb.1:
|
|
|
|
|
; X86-BMI2-NEXT: movl %edx, %eax
|
|
|
|
|
; X86-BMI2-NEXT: xorl %edx, %edx
|
|
|
|
|
; X86-BMI2-NEXT: .LBB15_2:
|
|
|
|
|
; X86-BMI2-NEXT: andl (%esi), %eax
|
|
|
|
|
; X86-BMI2-NEXT: andl 4(%esi), %edx
|
|
|
|
|
; X86-BMI2-NEXT: popl %esi
|
|
|
|
|
; X86-BMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X64-NOBMI2-LABEL: clear_highbits64_c2_load:
|
|
|
|
|
; X64-NOBMI2: # %bb.0:
|
2018-07-10 03:06:42 +08:00
|
|
|
; X64-NOBMI2-NEXT: movq %rsi, %rcx
|
|
|
|
|
; X64-NOBMI2-NEXT: movq (%rdi), %rax
|
|
|
|
|
; X64-NOBMI2-NEXT: shlq %cl, %rax
|
|
|
|
|
; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $rcx
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-NOBMI2-NEXT: shrq %cl, %rax
|
|
|
|
|
; X64-NOBMI2-NEXT: retq
|
|
|
|
|
;
|
|
|
|
|
; X64-BMI2-LABEL: clear_highbits64_c2_load:
|
|
|
|
|
; X64-BMI2: # %bb.0:
|
2018-07-10 03:06:42 +08:00
|
|
|
; X64-BMI2-NEXT: shlxq %rsi, (%rdi), %rax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-BMI2-NEXT: shrxq %rsi, %rax, %rax
|
|
|
|
|
; X64-BMI2-NEXT: retq
|
|
|
|
|
%val = load i64, i64* %w
|
|
|
|
|
%mask = lshr i64 -1, %numhighbits
|
|
|
|
|
%masked = and i64 %mask, %val
|
|
|
|
|
ret i64 %masked
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
define i64 @clear_highbits64_c3_load_indexzext(i64* %w, i8 %numhighbits) nounwind {
|
|
|
|
|
; X86-NOBMI2-LABEL: clear_highbits64_c3_load_indexzext:
|
|
|
|
|
; X86-NOBMI2: # %bb.0:
|
|
|
|
|
; X86-NOBMI2-NEXT: pushl %esi
|
|
|
|
|
; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %esi
|
|
|
|
|
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
|
|
|
|
|
; X86-NOBMI2-NEXT: movl $-1, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: movl $-1, %edx
|
|
|
|
|
; X86-NOBMI2-NEXT: shrl %cl, %edx
|
|
|
|
|
; X86-NOBMI2-NEXT: shrdl %cl, %eax, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: testb $32, %cl
|
|
|
|
|
; X86-NOBMI2-NEXT: je .LBB16_2
|
|
|
|
|
; X86-NOBMI2-NEXT: # %bb.1:
|
|
|
|
|
; X86-NOBMI2-NEXT: movl %edx, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: xorl %edx, %edx
|
|
|
|
|
; X86-NOBMI2-NEXT: .LBB16_2:
|
|
|
|
|
; X86-NOBMI2-NEXT: andl (%esi), %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: andl 4(%esi), %edx
|
|
|
|
|
; X86-NOBMI2-NEXT: popl %esi
|
|
|
|
|
; X86-NOBMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X86-BMI2-LABEL: clear_highbits64_c3_load_indexzext:
|
|
|
|
|
; X86-BMI2: # %bb.0:
|
|
|
|
|
; X86-BMI2-NEXT: pushl %esi
|
|
|
|
|
; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi
|
|
|
|
|
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
|
|
|
|
|
; X86-BMI2-NEXT: movl $-1, %eax
|
|
|
|
|
; X86-BMI2-NEXT: shrxl %ecx, %eax, %edx
|
|
|
|
|
; X86-BMI2-NEXT: shrdl %cl, %eax, %eax
|
|
|
|
|
; X86-BMI2-NEXT: testb $32, %cl
|
|
|
|
|
; X86-BMI2-NEXT: je .LBB16_2
|
|
|
|
|
; X86-BMI2-NEXT: # %bb.1:
|
|
|
|
|
; X86-BMI2-NEXT: movl %edx, %eax
|
|
|
|
|
; X86-BMI2-NEXT: xorl %edx, %edx
|
|
|
|
|
; X86-BMI2-NEXT: .LBB16_2:
|
|
|
|
|
; X86-BMI2-NEXT: andl (%esi), %eax
|
|
|
|
|
; X86-BMI2-NEXT: andl 4(%esi), %edx
|
|
|
|
|
; X86-BMI2-NEXT: popl %esi
|
|
|
|
|
; X86-BMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X64-NOBMI2-LABEL: clear_highbits64_c3_load_indexzext:
|
|
|
|
|
; X64-NOBMI2: # %bb.0:
|
|
|
|
|
; X64-NOBMI2-NEXT: movl %esi, %ecx
|
2018-07-10 03:06:42 +08:00
|
|
|
; X64-NOBMI2-NEXT: movq (%rdi), %rax
|
|
|
|
|
; X64-NOBMI2-NEXT: shlq %cl, %rax
|
|
|
|
|
; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-NOBMI2-NEXT: shrq %cl, %rax
|
|
|
|
|
; X64-NOBMI2-NEXT: retq
|
|
|
|
|
;
|
|
|
|
|
; X64-BMI2-LABEL: clear_highbits64_c3_load_indexzext:
|
|
|
|
|
; X64-BMI2: # %bb.0:
|
|
|
|
|
; X64-BMI2-NEXT: # kill: def $esi killed $esi def $rsi
|
2018-07-10 03:06:42 +08:00
|
|
|
; X64-BMI2-NEXT: shlxq %rsi, (%rdi), %rax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-BMI2-NEXT: shrxq %rsi, %rax, %rax
|
|
|
|
|
; X64-BMI2-NEXT: retq
|
|
|
|
|
%val = load i64, i64* %w
|
|
|
|
|
%sh_prom = zext i8 %numhighbits to i64
|
|
|
|
|
%mask = lshr i64 -1, %sh_prom
|
|
|
|
|
%masked = and i64 %mask, %val
|
|
|
|
|
ret i64 %masked
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
define i64 @clear_highbits64_c4_commutative(i64 %val, i64 %numhighbits) nounwind {
|
|
|
|
|
; X86-NOBMI2-LABEL: clear_highbits64_c4_commutative:
|
|
|
|
|
; X86-NOBMI2: # %bb.0:
|
|
|
|
|
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
|
|
|
|
|
; X86-NOBMI2-NEXT: movl $-1, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: movl $-1, %edx
|
|
|
|
|
; X86-NOBMI2-NEXT: shrl %cl, %edx
|
|
|
|
|
; X86-NOBMI2-NEXT: shrdl %cl, %eax, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: testb $32, %cl
|
|
|
|
|
; X86-NOBMI2-NEXT: je .LBB17_2
|
|
|
|
|
; X86-NOBMI2-NEXT: # %bb.1:
|
|
|
|
|
; X86-NOBMI2-NEXT: movl %edx, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: xorl %edx, %edx
|
|
|
|
|
; X86-NOBMI2-NEXT: .LBB17_2:
|
|
|
|
|
; X86-NOBMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: andl {{[0-9]+}}(%esp), %edx
|
|
|
|
|
; X86-NOBMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X86-BMI2-LABEL: clear_highbits64_c4_commutative:
|
|
|
|
|
; X86-BMI2: # %bb.0:
|
|
|
|
|
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
|
|
|
|
|
; X86-BMI2-NEXT: movl $-1, %eax
|
|
|
|
|
; X86-BMI2-NEXT: shrxl %ecx, %eax, %edx
|
|
|
|
|
; X86-BMI2-NEXT: shrdl %cl, %eax, %eax
|
|
|
|
|
; X86-BMI2-NEXT: testb $32, %cl
|
|
|
|
|
; X86-BMI2-NEXT: je .LBB17_2
|
|
|
|
|
; X86-BMI2-NEXT: # %bb.1:
|
|
|
|
|
; X86-BMI2-NEXT: movl %edx, %eax
|
|
|
|
|
; X86-BMI2-NEXT: xorl %edx, %edx
|
|
|
|
|
; X86-BMI2-NEXT: .LBB17_2:
|
|
|
|
|
; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
|
|
|
|
|
; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %edx
|
|
|
|
|
; X86-BMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X64-NOBMI2-LABEL: clear_highbits64_c4_commutative:
|
|
|
|
|
; X64-NOBMI2: # %bb.0:
|
2018-07-10 03:06:42 +08:00
|
|
|
; X64-NOBMI2-NEXT: movq %rsi, %rcx
|
|
|
|
|
; X64-NOBMI2-NEXT: movq %rdi, %rax
|
2018-09-20 02:59:08 +08:00
|
|
|
; X64-NOBMI2-NEXT: shlq %cl, %rax
|
|
|
|
|
; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $rcx
|
|
|
|
|
; X64-NOBMI2-NEXT: shrq %cl, %rax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-NOBMI2-NEXT: retq
|
|
|
|
|
;
|
|
|
|
|
; X64-BMI2-LABEL: clear_highbits64_c4_commutative:
|
|
|
|
|
; X64-BMI2: # %bb.0:
|
2018-07-10 03:06:42 +08:00
|
|
|
; X64-BMI2-NEXT: shlxq %rsi, %rdi, %rax
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-BMI2-NEXT: shrxq %rsi, %rax, %rax
|
|
|
|
|
; X64-BMI2-NEXT: retq
|
|
|
|
|
%mask = lshr i64 -1, %numhighbits
|
|
|
|
|
%masked = and i64 %val, %mask ; swapped order
|
|
|
|
|
ret i64 %masked
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; ---------------------------------------------------------------------------- ;
|
|
|
|
|
; Multi-use tests
|
|
|
|
|
; ---------------------------------------------------------------------------- ;
|
|
|
|
|
|
|
|
|
|
declare void @use32(i32)
|
|
|
|
|
declare void @use64(i64)
|
|
|
|
|
|
|
|
|
|
define i32 @oneuse32(i32 %val, i32 %numhighbits) nounwind {
|
|
|
|
|
; X86-NOBMI2-LABEL: oneuse32:
|
|
|
|
|
; X86-NOBMI2: # %bb.0:
|
|
|
|
|
; X86-NOBMI2-NEXT: pushl %esi
|
|
|
|
|
; X86-NOBMI2-NEXT: subl $8, %esp
|
|
|
|
|
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
|
|
|
|
|
; X86-NOBMI2-NEXT: movl $-1, %esi
|
|
|
|
|
; X86-NOBMI2-NEXT: shrl %cl, %esi
|
|
|
|
|
; X86-NOBMI2-NEXT: movl %esi, (%esp)
|
|
|
|
|
; X86-NOBMI2-NEXT: calll use32
|
|
|
|
|
; X86-NOBMI2-NEXT: andl {{[0-9]+}}(%esp), %esi
|
|
|
|
|
; X86-NOBMI2-NEXT: movl %esi, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: addl $8, %esp
|
|
|
|
|
; X86-NOBMI2-NEXT: popl %esi
|
|
|
|
|
; X86-NOBMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X86-BMI2-LABEL: oneuse32:
|
|
|
|
|
; X86-BMI2: # %bb.0:
|
|
|
|
|
; X86-BMI2-NEXT: pushl %esi
|
|
|
|
|
; X86-BMI2-NEXT: subl $8, %esp
|
|
|
|
|
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
|
|
|
|
|
; X86-BMI2-NEXT: movl $-1, %ecx
|
|
|
|
|
; X86-BMI2-NEXT: shrxl %eax, %ecx, %esi
|
|
|
|
|
; X86-BMI2-NEXT: movl %esi, (%esp)
|
|
|
|
|
; X86-BMI2-NEXT: calll use32
|
|
|
|
|
; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %esi
|
|
|
|
|
; X86-BMI2-NEXT: movl %esi, %eax
|
|
|
|
|
; X86-BMI2-NEXT: addl $8, %esp
|
|
|
|
|
; X86-BMI2-NEXT: popl %esi
|
|
|
|
|
; X86-BMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X64-NOBMI2-LABEL: oneuse32:
|
|
|
|
|
; X64-NOBMI2: # %bb.0:
|
|
|
|
|
; X64-NOBMI2-NEXT: pushq %rbp
|
|
|
|
|
; X64-NOBMI2-NEXT: pushq %rbx
|
|
|
|
|
; X64-NOBMI2-NEXT: pushq %rax
|
2018-09-20 02:59:08 +08:00
|
|
|
; X64-NOBMI2-NEXT: movl %esi, %ecx
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-NOBMI2-NEXT: movl %edi, %ebx
|
|
|
|
|
; X64-NOBMI2-NEXT: movl $-1, %ebp
|
2018-09-20 02:59:08 +08:00
|
|
|
; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-NOBMI2-NEXT: shrl %cl, %ebp
|
|
|
|
|
; X64-NOBMI2-NEXT: movl %ebp, %edi
|
|
|
|
|
; X64-NOBMI2-NEXT: callq use32
|
|
|
|
|
; X64-NOBMI2-NEXT: andl %ebx, %ebp
|
|
|
|
|
; X64-NOBMI2-NEXT: movl %ebp, %eax
|
|
|
|
|
; X64-NOBMI2-NEXT: addq $8, %rsp
|
|
|
|
|
; X64-NOBMI2-NEXT: popq %rbx
|
|
|
|
|
; X64-NOBMI2-NEXT: popq %rbp
|
|
|
|
|
; X64-NOBMI2-NEXT: retq
|
|
|
|
|
;
|
|
|
|
|
; X64-BMI2-LABEL: oneuse32:
|
|
|
|
|
; X64-BMI2: # %bb.0:
|
|
|
|
|
; X64-BMI2-NEXT: pushq %rbp
|
|
|
|
|
; X64-BMI2-NEXT: pushq %rbx
|
|
|
|
|
; X64-BMI2-NEXT: pushq %rax
|
|
|
|
|
; X64-BMI2-NEXT: movl %edi, %ebx
|
|
|
|
|
; X64-BMI2-NEXT: movl $-1, %eax
|
|
|
|
|
; X64-BMI2-NEXT: shrxl %esi, %eax, %ebp
|
|
|
|
|
; X64-BMI2-NEXT: movl %ebp, %edi
|
|
|
|
|
; X64-BMI2-NEXT: callq use32
|
|
|
|
|
; X64-BMI2-NEXT: andl %ebx, %ebp
|
|
|
|
|
; X64-BMI2-NEXT: movl %ebp, %eax
|
|
|
|
|
; X64-BMI2-NEXT: addq $8, %rsp
|
|
|
|
|
; X64-BMI2-NEXT: popq %rbx
|
|
|
|
|
; X64-BMI2-NEXT: popq %rbp
|
|
|
|
|
; X64-BMI2-NEXT: retq
|
|
|
|
|
%mask = lshr i32 -1, %numhighbits
|
|
|
|
|
call void @use32(i32 %mask)
|
|
|
|
|
%masked = and i32 %mask, %val
|
|
|
|
|
ret i32 %masked
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
define i64 @oneuse64(i64 %val, i64 %numhighbits) nounwind {
|
|
|
|
|
; X86-NOBMI2-LABEL: oneuse64:
|
|
|
|
|
; X86-NOBMI2: # %bb.0:
|
|
|
|
|
; X86-NOBMI2-NEXT: pushl %edi
|
|
|
|
|
; X86-NOBMI2-NEXT: pushl %esi
|
|
|
|
|
; X86-NOBMI2-NEXT: pushl %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
|
|
|
|
|
; X86-NOBMI2-NEXT: movl $-1, %esi
|
|
|
|
|
; X86-NOBMI2-NEXT: movl $-1, %edi
|
|
|
|
|
; X86-NOBMI2-NEXT: shrl %cl, %edi
|
|
|
|
|
; X86-NOBMI2-NEXT: shrdl %cl, %esi, %esi
|
|
|
|
|
; X86-NOBMI2-NEXT: testb $32, %cl
|
|
|
|
|
; X86-NOBMI2-NEXT: je .LBB19_2
|
|
|
|
|
; X86-NOBMI2-NEXT: # %bb.1:
|
|
|
|
|
; X86-NOBMI2-NEXT: movl %edi, %esi
|
|
|
|
|
; X86-NOBMI2-NEXT: xorl %edi, %edi
|
|
|
|
|
; X86-NOBMI2-NEXT: .LBB19_2:
|
|
|
|
|
; X86-NOBMI2-NEXT: subl $8, %esp
|
|
|
|
|
; X86-NOBMI2-NEXT: pushl %edi
|
|
|
|
|
; X86-NOBMI2-NEXT: pushl %esi
|
|
|
|
|
; X86-NOBMI2-NEXT: calll use64
|
|
|
|
|
; X86-NOBMI2-NEXT: addl $16, %esp
|
|
|
|
|
; X86-NOBMI2-NEXT: andl {{[0-9]+}}(%esp), %esi
|
|
|
|
|
; X86-NOBMI2-NEXT: andl {{[0-9]+}}(%esp), %edi
|
|
|
|
|
; X86-NOBMI2-NEXT: movl %esi, %eax
|
|
|
|
|
; X86-NOBMI2-NEXT: movl %edi, %edx
|
|
|
|
|
; X86-NOBMI2-NEXT: addl $4, %esp
|
|
|
|
|
; X86-NOBMI2-NEXT: popl %esi
|
|
|
|
|
; X86-NOBMI2-NEXT: popl %edi
|
|
|
|
|
; X86-NOBMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X86-BMI2-LABEL: oneuse64:
|
|
|
|
|
; X86-BMI2: # %bb.0:
|
|
|
|
|
; X86-BMI2-NEXT: pushl %edi
|
|
|
|
|
; X86-BMI2-NEXT: pushl %esi
|
|
|
|
|
; X86-BMI2-NEXT: pushl %eax
|
|
|
|
|
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
|
|
|
|
|
; X86-BMI2-NEXT: movl $-1, %esi
|
|
|
|
|
; X86-BMI2-NEXT: shrxl %ecx, %esi, %edi
|
|
|
|
|
; X86-BMI2-NEXT: shrdl %cl, %esi, %esi
|
|
|
|
|
; X86-BMI2-NEXT: testb $32, %cl
|
|
|
|
|
; X86-BMI2-NEXT: je .LBB19_2
|
|
|
|
|
; X86-BMI2-NEXT: # %bb.1:
|
|
|
|
|
; X86-BMI2-NEXT: movl %edi, %esi
|
|
|
|
|
; X86-BMI2-NEXT: xorl %edi, %edi
|
|
|
|
|
; X86-BMI2-NEXT: .LBB19_2:
|
|
|
|
|
; X86-BMI2-NEXT: subl $8, %esp
|
|
|
|
|
; X86-BMI2-NEXT: pushl %edi
|
|
|
|
|
; X86-BMI2-NEXT: pushl %esi
|
|
|
|
|
; X86-BMI2-NEXT: calll use64
|
|
|
|
|
; X86-BMI2-NEXT: addl $16, %esp
|
|
|
|
|
; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %esi
|
|
|
|
|
; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %edi
|
|
|
|
|
; X86-BMI2-NEXT: movl %esi, %eax
|
|
|
|
|
; X86-BMI2-NEXT: movl %edi, %edx
|
|
|
|
|
; X86-BMI2-NEXT: addl $4, %esp
|
|
|
|
|
; X86-BMI2-NEXT: popl %esi
|
|
|
|
|
; X86-BMI2-NEXT: popl %edi
|
|
|
|
|
; X86-BMI2-NEXT: retl
|
|
|
|
|
;
|
|
|
|
|
; X64-NOBMI2-LABEL: oneuse64:
|
|
|
|
|
; X64-NOBMI2: # %bb.0:
|
|
|
|
|
; X64-NOBMI2-NEXT: pushq %r14
|
|
|
|
|
; X64-NOBMI2-NEXT: pushq %rbx
|
|
|
|
|
; X64-NOBMI2-NEXT: pushq %rax
|
2018-09-20 02:59:08 +08:00
|
|
|
; X64-NOBMI2-NEXT: movq %rsi, %rcx
|
2018-07-04 03:12:37 +08:00
|
|
|
; X64-NOBMI2-NEXT: movq %rdi, %r14
|
|
|
|
|
; X64-NOBMI2-NEXT: movq $-1, %rbx
|
2018-09-20 02:59:08 +08:00
|
|
|
; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $rcx
|
2018-07-04 03:12:37 +08:00
|
|
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; X64-NOBMI2-NEXT: shrq %cl, %rbx
|
|
|
|
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; X64-NOBMI2-NEXT: movq %rbx, %rdi
|
|
|
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; X64-NOBMI2-NEXT: callq use64
|
|
|
|
|
; X64-NOBMI2-NEXT: andq %r14, %rbx
|
|
|
|
|
; X64-NOBMI2-NEXT: movq %rbx, %rax
|
|
|
|
|
; X64-NOBMI2-NEXT: addq $8, %rsp
|
|
|
|
|
; X64-NOBMI2-NEXT: popq %rbx
|
|
|
|
|
; X64-NOBMI2-NEXT: popq %r14
|
|
|
|
|
; X64-NOBMI2-NEXT: retq
|
|
|
|
|
;
|
|
|
|
|
; X64-BMI2-LABEL: oneuse64:
|
|
|
|
|
; X64-BMI2: # %bb.0:
|
|
|
|
|
; X64-BMI2-NEXT: pushq %r14
|
|
|
|
|
; X64-BMI2-NEXT: pushq %rbx
|
|
|
|
|
; X64-BMI2-NEXT: pushq %rax
|
|
|
|
|
; X64-BMI2-NEXT: movq %rdi, %r14
|
|
|
|
|
; X64-BMI2-NEXT: movq $-1, %rax
|
|
|
|
|
; X64-BMI2-NEXT: shrxq %rsi, %rax, %rbx
|
|
|
|
|
; X64-BMI2-NEXT: movq %rbx, %rdi
|
|
|
|
|
; X64-BMI2-NEXT: callq use64
|
|
|
|
|
; X64-BMI2-NEXT: andq %r14, %rbx
|
|
|
|
|
; X64-BMI2-NEXT: movq %rbx, %rax
|
|
|
|
|
; X64-BMI2-NEXT: addq $8, %rsp
|
|
|
|
|
; X64-BMI2-NEXT: popq %rbx
|
|
|
|
|
; X64-BMI2-NEXT: popq %r14
|
|
|
|
|
; X64-BMI2-NEXT: retq
|
|
|
|
|
%mask = lshr i64 -1, %numhighbits
|
|
|
|
|
call void @use64(i64 %mask)
|
|
|
|
|
%masked = and i64 %mask, %val
|
|
|
|
|
ret i64 %masked
|
|
|
|
|
}
|
