forked from OSchip/llvm-project
[X86][NFC] Add proper test for promotion of i8 cmov's of trunc's
There was no proper test for that code in X86TargetLowering::LowerSELECT(). Noticed accidentally while trying to modify the last branch in that function. llvm-svn: 355452
This commit is contained in:
Roman Lebedev
parent
bbdddb7b0e
commit
98d412ff13
|
|
@ -0,0 +1,271 @@
|
|||
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
||||
; RUN: llc < %s -mtriple=i386-unknown-unknown -mattr=-cmov | FileCheck %s --check-prefixes=ALL,I386,I386-NOCMOV
|
||||
; RUN: llc < %s -mtriple=i386-unknown-unknown -mattr=+cmov | FileCheck %s --check-prefixes=ALL,I386,I386-CMOV
|
||||
; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=-cmov | FileCheck %s --check-prefixes=ALL,I686,I686-NOCMOV
|
||||
; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+cmov | FileCheck %s --check-prefixes=ALL,I686,I686-CMOV
|
||||
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=-cmov | FileCheck %s --check-prefixes=ALL,X86_64,X86_64-NOCMOV
|
||||
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+cmov | FileCheck %s --check-prefixes=ALL,X86_64,X86_64-CMOV
|
||||
|
||||
; Values don't come from regs. All good.
|
||||
|
||||
define i8 @t0(i32 %a1_wide_orig, i32 %a2_wide_orig, i32 %inc) nounwind {
|
||||
; I386-NOCMOV-LABEL: t0:
|
||||
; I386-NOCMOV: # %bb.0:
|
||||
; I386-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %ecx
|
||||
; I386-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %eax
|
||||
; I386-NOCMOV-NEXT: addl %ecx, %eax
|
||||
; I386-NOCMOV-NEXT: addl {{[0-9]+}}(%esp), %ecx
|
||||
; I386-NOCMOV-NEXT: cmpb %cl, %al
|
||||
; I386-NOCMOV-NEXT: jge .LBB0_2
|
||||
; I386-NOCMOV-NEXT: # %bb.1:
|
||||
; I386-NOCMOV-NEXT: movl %ecx, %eax
|
||||
; I386-NOCMOV-NEXT: .LBB0_2:
|
||||
; I386-NOCMOV-NEXT: # kill: def $al killed $al killed $eax
|
||||
; I386-NOCMOV-NEXT: retl
|
||||
;
|
||||
; I386-CMOV-LABEL: t0:
|
||||
; I386-CMOV: # %bb.0:
|
||||
; I386-CMOV-NEXT: movl {{[0-9]+}}(%esp), %eax
|
||||
; I386-CMOV-NEXT: movl {{[0-9]+}}(%esp), %ecx
|
||||
; I386-CMOV-NEXT: addl %eax, %ecx
|
||||
; I386-CMOV-NEXT: addl {{[0-9]+}}(%esp), %eax
|
||||
; I386-CMOV-NEXT: cmpb %al, %cl
|
||||
; I386-CMOV-NEXT: cmovgel %ecx, %eax
|
||||
; I386-CMOV-NEXT: # kill: def $al killed $al killed $eax
|
||||
; I386-CMOV-NEXT: retl
|
||||
;
|
||||
; I686-NOCMOV-LABEL: t0:
|
||||
; I686-NOCMOV: # %bb.0:
|
||||
; I686-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %ecx
|
||||
; I686-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %eax
|
||||
; I686-NOCMOV-NEXT: addl %ecx, %eax
|
||||
; I686-NOCMOV-NEXT: addl {{[0-9]+}}(%esp), %ecx
|
||||
; I686-NOCMOV-NEXT: cmpb %cl, %al
|
||||
; I686-NOCMOV-NEXT: jge .LBB0_2
|
||||
; I686-NOCMOV-NEXT: # %bb.1:
|
||||
; I686-NOCMOV-NEXT: movl %ecx, %eax
|
||||
; I686-NOCMOV-NEXT: .LBB0_2:
|
||||
; I686-NOCMOV-NEXT: # kill: def $al killed $al killed $eax
|
||||
; I686-NOCMOV-NEXT: retl
|
||||
;
|
||||
; I686-CMOV-LABEL: t0:
|
||||
; I686-CMOV: # %bb.0:
|
||||
; I686-CMOV-NEXT: movl {{[0-9]+}}(%esp), %eax
|
||||
; I686-CMOV-NEXT: movl {{[0-9]+}}(%esp), %ecx
|
||||
; I686-CMOV-NEXT: addl %eax, %ecx
|
||||
; I686-CMOV-NEXT: addl {{[0-9]+}}(%esp), %eax
|
||||
; I686-CMOV-NEXT: cmpb %al, %cl
|
||||
; I686-CMOV-NEXT: cmovgel %ecx, %eax
|
||||
; I686-CMOV-NEXT: # kill: def $al killed $al killed $eax
|
||||
; I686-CMOV-NEXT: retl
|
||||
;
|
||||
; X86_64-LABEL: t0:
|
||||
; X86_64: # %bb.0:
|
||||
; X86_64-NEXT: movl %esi, %eax
|
||||
; X86_64-NEXT: addl %edx, %edi
|
||||
; X86_64-NEXT: addl %edx, %eax
|
||||
; X86_64-NEXT: cmpb %al, %dil
|
||||
; X86_64-NEXT: cmovgel %edi, %eax
|
||||
; X86_64-NEXT: # kill: def $al killed $al killed $eax
|
||||
; X86_64-NEXT: retq
|
||||
%a1_wide = add i32 %a1_wide_orig, %inc
|
||||
%a2_wide = add i32 %a2_wide_orig, %inc
|
||||
%a1 = trunc i32 %a1_wide to i8
|
||||
%a2 = trunc i32 %a2_wide to i8
|
||||
%t1 = icmp sgt i8 %a1, %a2
|
||||
%t2 = select i1 %t1, i8 %a1, i8 %a2
|
||||
ret i8 %t2
|
||||
}
|
||||
|
||||
; Values don't come from regs, but there is only one truncation.
|
||||
|
||||
define i8 @neg_only_one_truncation(i32 %a1_wide_orig, i8 %a2_orig, i32 %inc) nounwind {
|
||||
; I386-LABEL: neg_only_one_truncation:
|
||||
; I386: # %bb.0:
|
||||
; I386-NEXT: movl {{[0-9]+}}(%esp), %ecx
|
||||
; I386-NEXT: movl {{[0-9]+}}(%esp), %eax
|
||||
; I386-NEXT: addl %ecx, %eax
|
||||
; I386-NEXT: addb {{[0-9]+}}(%esp), %cl
|
||||
; I386-NEXT: cmpb %cl, %al
|
||||
; I386-NEXT: jge .LBB1_2
|
||||
; I386-NEXT: # %bb.1:
|
||||
; I386-NEXT: movl %ecx, %eax
|
||||
; I386-NEXT: .LBB1_2:
|
||||
; I386-NEXT: # kill: def $al killed $al killed $eax
|
||||
; I386-NEXT: retl
|
||||
;
|
||||
; I686-LABEL: neg_only_one_truncation:
|
||||
; I686: # %bb.0:
|
||||
; I686-NEXT: movl {{[0-9]+}}(%esp), %ecx
|
||||
; I686-NEXT: movl {{[0-9]+}}(%esp), %eax
|
||||
; I686-NEXT: addl %ecx, %eax
|
||||
; I686-NEXT: addb {{[0-9]+}}(%esp), %cl
|
||||
; I686-NEXT: cmpb %cl, %al
|
||||
; I686-NEXT: jge .LBB1_2
|
||||
; I686-NEXT: # %bb.1:
|
||||
; I686-NEXT: movl %ecx, %eax
|
||||
; I686-NEXT: .LBB1_2:
|
||||
; I686-NEXT: # kill: def $al killed $al killed $eax
|
||||
; I686-NEXT: retl
|
||||
;
|
||||
; X86_64-LABEL: neg_only_one_truncation:
|
||||
; X86_64: # %bb.0:
|
||||
; X86_64-NEXT: movl %edi, %eax
|
||||
; X86_64-NEXT: addl %edx, %eax
|
||||
; X86_64-NEXT: addb %sil, %dl
|
||||
; X86_64-NEXT: cmpb %dl, %al
|
||||
; X86_64-NEXT: jge .LBB1_2
|
||||
; X86_64-NEXT: # %bb.1:
|
||||
; X86_64-NEXT: movl %edx, %eax
|
||||
; X86_64-NEXT: .LBB1_2:
|
||||
; X86_64-NEXT: # kill: def $al killed $al killed $eax
|
||||
; X86_64-NEXT: retq
|
||||
%a1_wide = add i32 %a1_wide_orig, %inc
|
||||
%inc_short = trunc i32 %inc to i8
|
||||
%a2 = add i8 %a2_orig, %inc_short
|
||||
%a1 = trunc i32 %a1_wide to i8
|
||||
%t1 = icmp sgt i8 %a1, %a2
|
||||
%t2 = select i1 %t1, i8 %a1, i8 %a2
|
||||
ret i8 %t2
|
||||
}
|
||||
|
||||
; Values don't come from regs, but truncation from different types.
|
||||
|
||||
define i8 @neg_type_mismatch(i32 %a1_wide_orig, i16 %a2_wide_orig, i32 %inc) nounwind {
|
||||
; I386-LABEL: neg_type_mismatch:
|
||||
; I386: # %bb.0:
|
||||
; I386-NEXT: movl {{[0-9]+}}(%esp), %ecx
|
||||
; I386-NEXT: movl {{[0-9]+}}(%esp), %eax
|
||||
; I386-NEXT: addl %ecx, %eax
|
||||
; I386-NEXT: addw {{[0-9]+}}(%esp), %cx
|
||||
; I386-NEXT: cmpb %cl, %al
|
||||
; I386-NEXT: jge .LBB2_2
|
||||
; I386-NEXT: # %bb.1:
|
||||
; I386-NEXT: movl %ecx, %eax
|
||||
; I386-NEXT: .LBB2_2:
|
||||
; I386-NEXT: # kill: def $al killed $al killed $eax
|
||||
; I386-NEXT: retl
|
||||
;
|
||||
; I686-LABEL: neg_type_mismatch:
|
||||
; I686: # %bb.0:
|
||||
; I686-NEXT: movl {{[0-9]+}}(%esp), %ecx
|
||||
; I686-NEXT: movl {{[0-9]+}}(%esp), %eax
|
||||
; I686-NEXT: addl %ecx, %eax
|
||||
; I686-NEXT: addw {{[0-9]+}}(%esp), %cx
|
||||
; I686-NEXT: cmpb %cl, %al
|
||||
; I686-NEXT: jge .LBB2_2
|
||||
; I686-NEXT: # %bb.1:
|
||||
; I686-NEXT: movl %ecx, %eax
|
||||
; I686-NEXT: .LBB2_2:
|
||||
; I686-NEXT: # kill: def $al killed $al killed $eax
|
||||
; I686-NEXT: retl
|
||||
;
|
||||
; X86_64-LABEL: neg_type_mismatch:
|
||||
; X86_64: # %bb.0:
|
||||
; X86_64-NEXT: movl %edi, %eax
|
||||
; X86_64-NEXT: addl %edx, %eax
|
||||
; X86_64-NEXT: addl %edx, %esi
|
||||
; X86_64-NEXT: cmpb %sil, %al
|
||||
; X86_64-NEXT: jge .LBB2_2
|
||||
; X86_64-NEXT: # %bb.1:
|
||||
; X86_64-NEXT: movl %esi, %eax
|
||||
; X86_64-NEXT: .LBB2_2:
|
||||
; X86_64-NEXT: # kill: def $al killed $al killed $eax
|
||||
; X86_64-NEXT: retq
|
||||
%a1_wide = add i32 %a1_wide_orig, %inc
|
||||
%inc_short = trunc i32 %inc to i16
|
||||
%a2_wide = add i16 %a2_wide_orig, %inc_short
|
||||
%a1 = trunc i32 %a1_wide to i8
|
||||
%a2 = trunc i16 %a2_wide to i8
|
||||
%t1 = icmp sgt i8 %a1, %a2
|
||||
%t2 = select i1 %t1, i8 %a1, i8 %a2
|
||||
ret i8 %t2
|
||||
}
|
||||
|
||||
; One value come from regs
|
||||
|
||||
define i8 @negative_CopyFromReg(i32 %a1_wide, i32 %a2_wide_orig, i32 %inc) nounwind {
|
||||
; I386-LABEL: negative_CopyFromReg:
|
||||
; I386: # %bb.0:
|
||||
; I386-NEXT: movb {{[0-9]+}}(%esp), %al
|
||||
; I386-NEXT: movl {{[0-9]+}}(%esp), %ecx
|
||||
; I386-NEXT: addl {{[0-9]+}}(%esp), %ecx
|
||||
; I386-NEXT: cmpb %cl, %al
|
||||
; I386-NEXT: jge .LBB3_2
|
||||
; I386-NEXT: # %bb.1:
|
||||
; I386-NEXT: movl %ecx, %eax
|
||||
; I386-NEXT: .LBB3_2:
|
||||
; I386-NEXT: retl
|
||||
;
|
||||
; I686-LABEL: negative_CopyFromReg:
|
||||
; I686: # %bb.0:
|
||||
; I686-NEXT: movb {{[0-9]+}}(%esp), %al
|
||||
; I686-NEXT: movl {{[0-9]+}}(%esp), %ecx
|
||||
; I686-NEXT: addl {{[0-9]+}}(%esp), %ecx
|
||||
; I686-NEXT: cmpb %cl, %al
|
||||
; I686-NEXT: jge .LBB3_2
|
||||
; I686-NEXT: # %bb.1:
|
||||
; I686-NEXT: movl %ecx, %eax
|
||||
; I686-NEXT: .LBB3_2:
|
||||
; I686-NEXT: retl
|
||||
;
|
||||
; X86_64-LABEL: negative_CopyFromReg:
|
||||
; X86_64: # %bb.0:
|
||||
; X86_64-NEXT: movl %edi, %eax
|
||||
; X86_64-NEXT: addl %edx, %esi
|
||||
; X86_64-NEXT: cmpb %sil, %al
|
||||
; X86_64-NEXT: jge .LBB3_2
|
||||
; X86_64-NEXT: # %bb.1:
|
||||
; X86_64-NEXT: movl %esi, %eax
|
||||
; X86_64-NEXT: .LBB3_2:
|
||||
; X86_64-NEXT: # kill: def $al killed $al killed $eax
|
||||
; X86_64-NEXT: retq
|
||||
%a2_wide = add i32 %a2_wide_orig, %inc
|
||||
%a1 = trunc i32 %a1_wide to i8
|
||||
%a2 = trunc i32 %a2_wide to i8
|
||||
%t1 = icmp sgt i8 %a1, %a2
|
||||
%t2 = select i1 %t1, i8 %a1, i8 %a2
|
||||
ret i8 %t2
|
||||
}
|
||||
|
||||
; Both values come from regs
|
||||
|
||||
define i8 @negative_CopyFromRegs(i32 %a1_wide, i32 %a2_wide) nounwind {
|
||||
; I386-LABEL: negative_CopyFromRegs:
|
||||
; I386: # %bb.0:
|
||||
; I386-NEXT: movb {{[0-9]+}}(%esp), %cl
|
||||
; I386-NEXT: movb {{[0-9]+}}(%esp), %al
|
||||
; I386-NEXT: cmpb %cl, %al
|
||||
; I386-NEXT: jge .LBB4_2
|
||||
; I386-NEXT: # %bb.1:
|
||||
; I386-NEXT: movl %ecx, %eax
|
||||
; I386-NEXT: .LBB4_2:
|
||||
; I386-NEXT: retl
|
||||
;
|
||||
; I686-LABEL: negative_CopyFromRegs:
|
||||
; I686: # %bb.0:
|
||||
; I686-NEXT: movb {{[0-9]+}}(%esp), %cl
|
||||
; I686-NEXT: movb {{[0-9]+}}(%esp), %al
|
||||
; I686-NEXT: cmpb %cl, %al
|
||||
; I686-NEXT: jge .LBB4_2
|
||||
; I686-NEXT: # %bb.1:
|
||||
; I686-NEXT: movl %ecx, %eax
|
||||
; I686-NEXT: .LBB4_2:
|
||||
; I686-NEXT: retl
|
||||
;
|
||||
; X86_64-LABEL: negative_CopyFromRegs:
|
||||
; X86_64: # %bb.0:
|
||||
; X86_64-NEXT: movl %edi, %eax
|
||||
; X86_64-NEXT: cmpb %sil, %al
|
||||
; X86_64-NEXT: jge .LBB4_2
|
||||
; X86_64-NEXT: # %bb.1:
|
||||
; X86_64-NEXT: movl %esi, %eax
|
||||
; X86_64-NEXT: .LBB4_2:
|
||||
; X86_64-NEXT: # kill: def $al killed $al killed $eax
|
||||
; X86_64-NEXT: retq
|
||||
%a1 = trunc i32 %a1_wide to i8
|
||||
%a2 = trunc i32 %a2_wide to i8
|
||||
%t1 = icmp sgt i8 %a1, %a2
|
||||
%t2 = select i1 %t1, i8 %a1, i8 %a2
|
||||
ret i8 %t2
|
||||
}
|
||||
Loading…
Reference in New Issue