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[X86] Add test coverage for shl nsw with freeze

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This commit is contained in:
Simon Pilgrim 2022-08-14 13:42:35 +01:00
parent ed0074bd86
commit 3dba35b62b
1 changed files with 20 additions and 0 deletions
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20
llvm/test/CodeGen/X86/freeze-binary.ll
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@ -342,6 +342,26 @@ define i32 @freeze_shl(i32 %a0) nounwind {
ret i32 %z
}
define i32 @freeze_shl_nsw(i32 %a0) nounwind {
; X86-LABEL: freeze_shl_nsw:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: shll $3, %eax
; X86-NEXT: shll $5, %eax
; X86-NEXT: retl
;
; X64-LABEL: freeze_shl_nsw:
; X64: # %bb.0:
; X64-NEXT: # kill: def $edi killed $edi def $rdi
; X64-NEXT: leal (,%rdi,8), %eax
; X64-NEXT: shll $5, %eax
; X64-NEXT: retq
%x = shl nsw i32 %a0, 3
%y = freeze i32 %x
%z = shl i32 %y, 5
ret i32 %z
}
define i32 @freeze_shl_outofrange(i32 %a0) nounwind {
; X86-LABEL: freeze_shl_outofrange:
; X86: # %bb.0: