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TheRock/compiler/amd-llvm/llvm/test/Transforms/PhaseOrdering/pr36760.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

66 lines
1.8 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes='default<O2>' -S < %s | FileCheck %s
define i64 @PR36760(i64 %a) {
; CHECK-LABEL: @PR36760(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = tail call i64 @llvm.smax.i64(i64 [[A:%.*]], i64 0)
; CHECK-NEXT: ret i64 [[TMP0]]
;
entry:
%retval = alloca i64, align 8
%a.addr = alloca i64, align 8
store i64 %a, ptr %a.addr, align 8
%0 = load i64, ptr %a.addr, align 8
%cmp = icmp slt i64 %0, 0
br i1 %cmp, label %if.then, label %if.end
if.then:
store i64 0, ptr %retval, align 8
br label %return
if.end:
%1 = load i64, ptr %a.addr, align 8
%shr = ashr i64 %1, 63
%2 = load i64, ptr %a.addr, align 8
%xor = xor i64 %shr, %2
store i64 %xor, ptr %retval, align 8
br label %return
return:
%3 = load i64, ptr %retval, align 8
ret i64 %3
}
define i64 @PR36760_2(i64 %a) #0 {
; CHECK-LABEL: @PR36760_2(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = tail call i64 @llvm.smin.i64(i64 [[A:%.*]], i64 -1)
; CHECK-NEXT: [[TMP1:%.*]] = xor i64 [[TMP0]], -1
; CHECK-NEXT: ret i64 [[TMP1]]
;
entry:
%retval = alloca i64, align 8
%a.addr = alloca i64, align 8
store i64 %a, ptr %a.addr, align 8
%0 = load i64, ptr %a.addr, align 8
%cmp = icmp sge i64 %0, 0
br i1 %cmp, label %if.then, label %if.end
if.then: ; preds = %entry
store i64 0, ptr %retval, align 8
br label %return
if.end: ; preds = %entry
%1 = load i64, ptr %a.addr, align 8
%shr = ashr i64 %1, 63
%2 = load i64, ptr %a.addr, align 8
%xor = xor i64 %shr, %2
store i64 %xor, ptr %retval, align 8
br label %return
return: ; preds = %if.end, %if.then
%3 = load i64, ptr %retval, align 8
ret i64 %3
}