forked from OSchip/llvm-project
[NFC][X86][Codegen] Add some tests for 64-bit shift by (32-x)
This commit is contained in:
Roman Lebedev
parent
81fce29d6e
commit
40147c33d1
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@ -0,0 +1,367 @@
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefixes=X64-NOBMI2
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+bmi2 | FileCheck %s --check-prefixes=X64-BMI2
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; RUN: llc < %s -mtriple=i686-unknown-unknown | FileCheck %s --check-prefixes=X32-NOBMI2
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; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+bmi2 | FileCheck %s --check-prefixes=X32-BMI2
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define i64 @t0(i64 %val, i64 %shamt) nounwind {
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; X64-NOBMI2-LABEL: t0:
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; X64-NOBMI2: # %bb.0:
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; X64-NOBMI2-NEXT: movq %rdi, %rax
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; X64-NOBMI2-NEXT: movb $32, %cl
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; X64-NOBMI2-NEXT: subb %sil, %cl
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; X64-NOBMI2-NEXT: shlq %cl, %rax
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; X64-NOBMI2-NEXT: retq
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;
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; X64-BMI2-LABEL: t0:
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; X64-BMI2: # %bb.0:
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; X64-BMI2-NEXT: movb $32, %al
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; X64-BMI2-NEXT: subb %sil, %al
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; X64-BMI2-NEXT: shlxq %rax, %rdi, %rax
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; X64-BMI2-NEXT: retq
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;
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; X32-NOBMI2-LABEL: t0:
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; X32-NOBMI2: # %bb.0:
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; X32-NOBMI2-NEXT: pushl %esi
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; X32-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %esi
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; X32-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
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; X32-NOBMI2-NEXT: movb $32, %cl
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; X32-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
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; X32-NOBMI2-NEXT: movl %esi, %eax
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; X32-NOBMI2-NEXT: shll %cl, %eax
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; X32-NOBMI2-NEXT: shldl %cl, %esi, %edx
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; X32-NOBMI2-NEXT: testb $32, %cl
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; X32-NOBMI2-NEXT: je .LBB0_2
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; X32-NOBMI2-NEXT: # %bb.1:
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; X32-NOBMI2-NEXT: movl %eax, %edx
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; X32-NOBMI2-NEXT: xorl %eax, %eax
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; X32-NOBMI2-NEXT: .LBB0_2:
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; X32-NOBMI2-NEXT: popl %esi
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; X32-NOBMI2-NEXT: retl
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;
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; X32-BMI2-LABEL: t0:
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; X32-BMI2: # %bb.0:
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; X32-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X32-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
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; X32-BMI2-NEXT: movb $32, %cl
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; X32-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
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; X32-BMI2-NEXT: shldl %cl, %eax, %edx
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; X32-BMI2-NEXT: shlxl %ecx, %eax, %eax
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; X32-BMI2-NEXT: testb $32, %cl
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; X32-BMI2-NEXT: je .LBB0_2
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; X32-BMI2-NEXT: # %bb.1:
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; X32-BMI2-NEXT: movl %eax, %edx
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; X32-BMI2-NEXT: xorl %eax, %eax
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; X32-BMI2-NEXT: .LBB0_2:
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; X32-BMI2-NEXT: retl
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%negshamt = sub i64 32, %shamt
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%shifted = shl i64 %val, %negshamt
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ret i64 %shifted
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}
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; The constant we are subtracting from should be a multiple of 32.
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define i64 @n1(i64 %val, i64 %shamt) nounwind {
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; X64-NOBMI2-LABEL: n1:
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; X64-NOBMI2: # %bb.0:
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; X64-NOBMI2-NEXT: movq %rdi, %rax
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; X64-NOBMI2-NEXT: movb $33, %cl
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; X64-NOBMI2-NEXT: subb %sil, %cl
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; X64-NOBMI2-NEXT: shlq %cl, %rax
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; X64-NOBMI2-NEXT: retq
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;
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; X64-BMI2-LABEL: n1:
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; X64-BMI2: # %bb.0:
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; X64-BMI2-NEXT: movb $33, %al
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; X64-BMI2-NEXT: subb %sil, %al
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; X64-BMI2-NEXT: shlxq %rax, %rdi, %rax
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; X64-BMI2-NEXT: retq
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;
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; X32-NOBMI2-LABEL: n1:
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; X32-NOBMI2: # %bb.0:
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; X32-NOBMI2-NEXT: pushl %esi
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; X32-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %esi
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; X32-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
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; X32-NOBMI2-NEXT: movb $33, %cl
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; X32-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
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; X32-NOBMI2-NEXT: movl %esi, %eax
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; X32-NOBMI2-NEXT: shll %cl, %eax
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; X32-NOBMI2-NEXT: shldl %cl, %esi, %edx
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; X32-NOBMI2-NEXT: testb $32, %cl
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; X32-NOBMI2-NEXT: je .LBB1_2
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; X32-NOBMI2-NEXT: # %bb.1:
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; X32-NOBMI2-NEXT: movl %eax, %edx
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; X32-NOBMI2-NEXT: xorl %eax, %eax
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; X32-NOBMI2-NEXT: .LBB1_2:
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; X32-NOBMI2-NEXT: popl %esi
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; X32-NOBMI2-NEXT: retl
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;
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; X32-BMI2-LABEL: n1:
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; X32-BMI2: # %bb.0:
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; X32-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X32-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
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; X32-BMI2-NEXT: movb $33, %cl
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; X32-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
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; X32-BMI2-NEXT: shldl %cl, %eax, %edx
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; X32-BMI2-NEXT: shlxl %ecx, %eax, %eax
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; X32-BMI2-NEXT: testb $32, %cl
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; X32-BMI2-NEXT: je .LBB1_2
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; X32-BMI2-NEXT: # %bb.1:
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; X32-BMI2-NEXT: movl %eax, %edx
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; X32-BMI2-NEXT: xorl %eax, %eax
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; X32-BMI2-NEXT: .LBB1_2:
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; X32-BMI2-NEXT: retl
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%negshamt = sub i64 33, %shamt
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%shifted = shl i64 %val, %negshamt
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ret i64 %shifted
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}
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define i64 @n2(i64 %val, i64 %shamt) nounwind {
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; X64-NOBMI2-LABEL: n2:
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; X64-NOBMI2: # %bb.0:
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; X64-NOBMI2-NEXT: movq %rdi, %rax
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; X64-NOBMI2-NEXT: movb $31, %cl
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; X64-NOBMI2-NEXT: subb %sil, %cl
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; X64-NOBMI2-NEXT: shlq %cl, %rax
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; X64-NOBMI2-NEXT: retq
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;
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; X64-BMI2-LABEL: n2:
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; X64-BMI2: # %bb.0:
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; X64-BMI2-NEXT: movb $31, %al
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; X64-BMI2-NEXT: subb %sil, %al
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; X64-BMI2-NEXT: shlxq %rax, %rdi, %rax
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; X64-BMI2-NEXT: retq
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;
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; X32-NOBMI2-LABEL: n2:
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; X32-NOBMI2: # %bb.0:
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; X32-NOBMI2-NEXT: pushl %esi
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; X32-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %esi
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; X32-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
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; X32-NOBMI2-NEXT: movb $31, %cl
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; X32-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
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; X32-NOBMI2-NEXT: movl %esi, %eax
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; X32-NOBMI2-NEXT: shll %cl, %eax
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; X32-NOBMI2-NEXT: shldl %cl, %esi, %edx
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; X32-NOBMI2-NEXT: testb $32, %cl
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; X32-NOBMI2-NEXT: je .LBB2_2
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; X32-NOBMI2-NEXT: # %bb.1:
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; X32-NOBMI2-NEXT: movl %eax, %edx
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; X32-NOBMI2-NEXT: xorl %eax, %eax
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; X32-NOBMI2-NEXT: .LBB2_2:
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; X32-NOBMI2-NEXT: popl %esi
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; X32-NOBMI2-NEXT: retl
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;
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; X32-BMI2-LABEL: n2:
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; X32-BMI2: # %bb.0:
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; X32-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X32-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
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; X32-BMI2-NEXT: movb $31, %cl
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; X32-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
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; X32-BMI2-NEXT: shldl %cl, %eax, %edx
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; X32-BMI2-NEXT: shlxl %ecx, %eax, %eax
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; X32-BMI2-NEXT: testb $32, %cl
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; X32-BMI2-NEXT: je .LBB2_2
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; X32-BMI2-NEXT: # %bb.1:
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; X32-BMI2-NEXT: movl %eax, %edx
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; X32-BMI2-NEXT: xorl %eax, %eax
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; X32-BMI2-NEXT: .LBB2_2:
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; X32-BMI2-NEXT: retl
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%negshamt = sub i64 31, %shamt
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%shifted = shl i64 %val, %negshamt
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ret i64 %shifted
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}
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define i64 @t3(i64 %val, i64 %shamt) nounwind {
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; X64-NOBMI2-LABEL: t3:
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; X64-NOBMI2: # %bb.0:
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; X64-NOBMI2-NEXT: movq %rsi, %rcx
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; X64-NOBMI2-NEXT: movq %rdi, %rax
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; X64-NOBMI2-NEXT: negb %cl
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; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $rcx
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; X64-NOBMI2-NEXT: shlq %cl, %rax
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; X64-NOBMI2-NEXT: retq
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;
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; X64-BMI2-LABEL: t3:
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; X64-BMI2: # %bb.0:
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; X64-BMI2-NEXT: negb %sil
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; X64-BMI2-NEXT: shlxq %rsi, %rdi, %rax
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; X64-BMI2-NEXT: retq
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;
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; X32-NOBMI2-LABEL: t3:
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; X32-NOBMI2: # %bb.0:
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; X32-NOBMI2-NEXT: pushl %esi
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; X32-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %esi
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; X32-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
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; X32-NOBMI2-NEXT: movb $64, %cl
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; X32-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
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; X32-NOBMI2-NEXT: movl %esi, %eax
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; X32-NOBMI2-NEXT: shll %cl, %eax
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; X32-NOBMI2-NEXT: shldl %cl, %esi, %edx
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; X32-NOBMI2-NEXT: testb $32, %cl
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; X32-NOBMI2-NEXT: je .LBB3_2
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; X32-NOBMI2-NEXT: # %bb.1:
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; X32-NOBMI2-NEXT: movl %eax, %edx
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; X32-NOBMI2-NEXT: xorl %eax, %eax
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; X32-NOBMI2-NEXT: .LBB3_2:
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; X32-NOBMI2-NEXT: popl %esi
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; X32-NOBMI2-NEXT: retl
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;
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; X32-BMI2-LABEL: t3:
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; X32-BMI2: # %bb.0:
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; X32-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X32-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
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; X32-BMI2-NEXT: movb $64, %cl
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; X32-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
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; X32-BMI2-NEXT: shldl %cl, %eax, %edx
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; X32-BMI2-NEXT: shlxl %ecx, %eax, %eax
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; X32-BMI2-NEXT: testb $32, %cl
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; X32-BMI2-NEXT: je .LBB3_2
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; X32-BMI2-NEXT: # %bb.1:
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; X32-BMI2-NEXT: movl %eax, %edx
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; X32-BMI2-NEXT: xorl %eax, %eax
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; X32-BMI2-NEXT: .LBB3_2:
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; X32-BMI2-NEXT: retl
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%negshamt = sub i64 64, %shamt
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%shifted = shl i64 %val, %negshamt
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ret i64 %shifted
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}
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define i64 @t4(i64 %val, i64 %shamt) nounwind {
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; X64-NOBMI2-LABEL: t4:
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; X64-NOBMI2: # %bb.0:
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; X64-NOBMI2-NEXT: movq %rdi, %rax
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; X64-NOBMI2-NEXT: movb $96, %cl
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; X64-NOBMI2-NEXT: subb %sil, %cl
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; X64-NOBMI2-NEXT: shlq %cl, %rax
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; X64-NOBMI2-NEXT: retq
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;
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; X64-BMI2-LABEL: t4:
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; X64-BMI2: # %bb.0:
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; X64-BMI2-NEXT: movb $96, %al
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; X64-BMI2-NEXT: subb %sil, %al
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; X64-BMI2-NEXT: shlxq %rax, %rdi, %rax
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; X64-BMI2-NEXT: retq
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;
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; X32-NOBMI2-LABEL: t4:
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; X32-NOBMI2: # %bb.0:
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; X32-NOBMI2-NEXT: pushl %esi
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; X32-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %esi
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; X32-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
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; X32-NOBMI2-NEXT: movb $96, %cl
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; X32-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
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; X32-NOBMI2-NEXT: movl %esi, %eax
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; X32-NOBMI2-NEXT: shll %cl, %eax
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; X32-NOBMI2-NEXT: shldl %cl, %esi, %edx
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; X32-NOBMI2-NEXT: testb $32, %cl
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; X32-NOBMI2-NEXT: je .LBB4_2
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; X32-NOBMI2-NEXT: # %bb.1:
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; X32-NOBMI2-NEXT: movl %eax, %edx
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; X32-NOBMI2-NEXT: xorl %eax, %eax
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; X32-NOBMI2-NEXT: .LBB4_2:
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; X32-NOBMI2-NEXT: popl %esi
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; X32-NOBMI2-NEXT: retl
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;
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; X32-BMI2-LABEL: t4:
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; X32-BMI2: # %bb.0:
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; X32-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X32-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
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; X32-BMI2-NEXT: movb $96, %cl
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; X32-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
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; X32-BMI2-NEXT: shldl %cl, %eax, %edx
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; X32-BMI2-NEXT: shlxl %ecx, %eax, %eax
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; X32-BMI2-NEXT: testb $32, %cl
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; X32-BMI2-NEXT: je .LBB4_2
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; X32-BMI2-NEXT: # %bb.1:
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; X32-BMI2-NEXT: movl %eax, %edx
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; X32-BMI2-NEXT: xorl %eax, %eax
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; X32-BMI2-NEXT: .LBB4_2:
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; X32-BMI2-NEXT: retl
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%negshamt = sub i64 96, %shamt
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%shifted = shl i64 %val, %negshamt
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ret i64 %shifted
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}
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define i64 @t5_cse(i64 %val, i64 %shamt, i64*%dst) nounwind {
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; X64-NOBMI2-LABEL: t5_cse:
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; X64-NOBMI2: # %bb.0:
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; X64-NOBMI2-NEXT: movq %rdi, %rax
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; X64-NOBMI2-NEXT: leaq 32(%rsi), %rcx
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; X64-NOBMI2-NEXT: movq %rcx, (%rdx)
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; X64-NOBMI2-NEXT: movb $32, %cl
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; X64-NOBMI2-NEXT: subb %sil, %cl
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; X64-NOBMI2-NEXT: shlq %cl, %rax
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; X64-NOBMI2-NEXT: retq
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;
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; X64-BMI2-LABEL: t5_cse:
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; X64-BMI2: # %bb.0:
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; X64-BMI2-NEXT: leaq 32(%rsi), %rax
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; X64-BMI2-NEXT: movq %rax, (%rdx)
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; X64-BMI2-NEXT: movb $32, %al
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; X64-BMI2-NEXT: subb %sil, %al
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; X64-BMI2-NEXT: shlxq %rax, %rdi, %rax
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; X64-BMI2-NEXT: retq
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;
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; X32-NOBMI2-LABEL: t5_cse:
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; X32-NOBMI2: # %bb.0:
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; X32-NOBMI2-NEXT: pushl %ebx
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; X32-NOBMI2-NEXT: pushl %edi
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; X32-NOBMI2-NEXT: pushl %esi
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; X32-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %esi
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; X32-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
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; X32-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X32-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X32-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edi
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; X32-NOBMI2-NEXT: movl %eax, %ebx
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; X32-NOBMI2-NEXT: addl $32, %ebx
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; X32-NOBMI2-NEXT: adcl $0, %edi
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; X32-NOBMI2-NEXT: movl %ebx, (%ecx)
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; X32-NOBMI2-NEXT: movl %edi, 4(%ecx)
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; X32-NOBMI2-NEXT: movb $32, %cl
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; X32-NOBMI2-NEXT: subb %al, %cl
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; X32-NOBMI2-NEXT: movl %esi, %eax
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; X32-NOBMI2-NEXT: shll %cl, %eax
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; X32-NOBMI2-NEXT: shldl %cl, %esi, %edx
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; X32-NOBMI2-NEXT: testb $32, %cl
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; X32-NOBMI2-NEXT: je .LBB5_2
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; X32-NOBMI2-NEXT: # %bb.1:
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; X32-NOBMI2-NEXT: movl %eax, %edx
|
||||
; X32-NOBMI2-NEXT: xorl %eax, %eax
|
||||
; X32-NOBMI2-NEXT: .LBB5_2:
|
||||
; X32-NOBMI2-NEXT: popl %esi
|
||||
; X32-NOBMI2-NEXT: popl %edi
|
||||
; X32-NOBMI2-NEXT: popl %ebx
|
||||
; X32-NOBMI2-NEXT: retl
|
||||
;
|
||||
; X32-BMI2-LABEL: t5_cse:
|
||||
; X32-BMI2: # %bb.0:
|
||||
; X32-BMI2-NEXT: pushl %ebx
|
||||
; X32-BMI2-NEXT: pushl %edi
|
||||
; X32-BMI2-NEXT: pushl %esi
|
||||
; X32-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi
|
||||
; X32-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
|
||||
; X32-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
|
||||
; X32-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
|
||||
; X32-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edi
|
||||
; X32-BMI2-NEXT: movl %eax, %ebx
|
||||
; X32-BMI2-NEXT: addl $32, %ebx
|
||||
; X32-BMI2-NEXT: adcl $0, %edi
|
||||
; X32-BMI2-NEXT: movl %ebx, (%ecx)
|
||||
; X32-BMI2-NEXT: movl %edi, 4(%ecx)
|
||||
; X32-BMI2-NEXT: movb $32, %cl
|
||||
; X32-BMI2-NEXT: subb %al, %cl
|
||||
; X32-BMI2-NEXT: shldl %cl, %esi, %edx
|
||||
; X32-BMI2-NEXT: shlxl %ecx, %esi, %eax
|
||||
; X32-BMI2-NEXT: testb $32, %cl
|
||||
; X32-BMI2-NEXT: je .LBB5_2
|
||||
; X32-BMI2-NEXT: # %bb.1:
|
||||
; X32-BMI2-NEXT: movl %eax, %edx
|
||||
; X32-BMI2-NEXT: xorl %eax, %eax
|
||||
; X32-BMI2-NEXT: .LBB5_2:
|
||||
; X32-BMI2-NEXT: popl %esi
|
||||
; X32-BMI2-NEXT: popl %edi
|
||||
; X32-BMI2-NEXT: popl %ebx
|
||||
; X32-BMI2-NEXT: retl
|
||||
%incshamt = add i64 %shamt, 32
|
||||
store i64 %incshamt, i64* %dst
|
||||
%negshamt = sub i64 32, %shamt
|
||||
%shifted = shl i64 %val, %negshamt
|
||||
ret i64 %shifted
|
||||
}
|
||||
Loading…
Reference in New Issue