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TheRock/compiler/amd-llvm/llvm/test/Transforms/HotColdSplit/stale-funcretval-after-sever.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

33 lines
1.1 KiB
LLVM

; RUN: opt -S -passes=hotcoldsplit -hotcoldsplit-threshold=0 < %s | FileCheck %s
target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-n32:64-S128-Fn32"
target triple = "arm64-apple-macosx27.0.0"
declare void @sink_call(ptr, i32, ptr)
; CHECK-LABEL: define ptr @test_stale_funcretval(
; CHECK: call void @test_stale_funcretval.cold.1()
; CHECK-LABEL: end:
; CHECK-NEXT: phi ptr [ %ph, %codeRepl ], [ null, %then ]
; CHECK-LABEL: define internal void @test_stale_funcretval.cold.1()
; CHECK: ret void
define ptr @test_stale_funcretval() {
entry:
br i1 false, label %sink, label %then
then: ; preds = %entry
br i1 false, label %end, label %sink, !prof !0
sink: ; preds = %then, %entry
%ph = phi ptr [ null, %then ], [ null, %entry ]
tail call void @sink_call(ptr null, i32 0, ptr null)
br label %end
end: ; preds = %sink, %then
%val = phi ptr [ %ph, %sink ], [ null, %then ]
ret ptr %val
}
!0 = !{!"branch_weights", !"expected", i32 2000, i32 1}