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TheRock/compiler/amd-llvm/llvm/test/CodeGen/X86/pr12360.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

59 lines
1.4 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s
define zeroext i1 @f1(ptr %x) {
; CHECK-LABEL: f1:
; CHECK: ## %bb.0: ## %entry
; CHECK-NEXT: movzbl (%rdi), %eax
; CHECK-NEXT: retq
entry:
%0 = load i8, ptr %x, align 1, !range !0, !noundef !{}
%tobool = trunc i8 %0 to i1
ret i1 %tobool
}
define zeroext i1 @f2(ptr %x) {
; CHECK-LABEL: f2:
; CHECK: ## %bb.0: ## %entry
; CHECK-NEXT: movzbl (%rdi), %eax
; CHECK-NEXT: retq
entry:
%0 = load i8, ptr %x, align 1, !range !0, !noundef !{}
%tobool = icmp ne i8 %0, 0
ret i1 %tobool
}
!0 = !{i8 0, i8 2}
; check that we don't build a "trunc" from i1 to i1, which would assert.
define zeroext i1 @f3(i1 %x) {
; CHECK-LABEL: f3:
; CHECK: ## %bb.0: ## %entry
; CHECK-NEXT: movl %edi, %eax
; CHECK-NEXT: andb $1, %al
; CHECK-NEXT: ## kill: def $al killed $al killed $eax
; CHECK-NEXT: retq
entry:
%tobool = icmp ne i1 %x, 0
ret i1 %tobool
}
; check that we don't build a trunc when other bits are needed
define zeroext i1 @f4(i32 %x) {
; CHECK-LABEL: f4:
; CHECK: ## %bb.0: ## %entry
; CHECK-NEXT: movzwl %di, %eax
; CHECK-NEXT: shrl $15, %eax
; CHECK-NEXT: ## kill: def $al killed $al killed $eax
; CHECK-NEXT: retq
entry:
%y = and i32 %x, 32768
%z = icmp ne i32 %y, 0
ret i1 %z
}