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1a528fc8fd
I had falsely assumed that constant operands would be operand(1) of the bin ops that may need their constant operand to be masked. Bugzilla: https://bugs.llvm.org/show_bug.cgi?id=35761 Differential Revision: https://reviews.llvm.org/D41667 llvm-svn: 321991
37 lines
1.0 KiB
LLVM
37 lines
1.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=x86_64-unknown-linux %s -o - | FileCheck %s
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@x = global i8 0, align 1
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@y = global i32 0, align 4
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@z = global i24 0, align 4
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define void @PR35761(i32 %call) {
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; CHECK-LABEL: PR35761:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: movzbl {{.*}}(%rip), %eax
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; CHECK-NEXT: andl $1, %eax
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; CHECK-NEXT: movzbl {{.*}}(%rip), %ecx
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; CHECK-NEXT: xorl $255, %ecx
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; CHECK-NEXT: orl %eax, %ecx
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; CHECK-NEXT: movw %cx, {{.*}}(%rip)
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; CHECK-NEXT: movb $0, z+{{.*}}(%rip)
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; CHECK-NEXT: retq
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entry:
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%0 = load i8, i8* @x, align 1
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%tobool = trunc i8 %0 to i1
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%conv = zext i1 %tobool to i32
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%or = or i32 32767, %call
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%neg = xor i32 %or, -1
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%neg1 = xor i32 %neg, -1
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%1 = load i32, i32* @y, align 4
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%xor = xor i32 %neg1, %1
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%or2 = or i32 %conv, %xor
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%conv3 = trunc i32 %or2 to i8
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%bf.load = load i24, i24* @z, align 4
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%2 = zext i8 %conv3 to i24
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%bf.value = and i24 %2, 4194303
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store i24 %bf.value, i24* @z, align 2
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ret void
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}
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