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TheRock/compiler/amd-llvm/llvm/test/Transforms/PGOProfile/callbr.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

30 lines
848 B
LLVM

; RUN: opt -passes=pgo-instr-gen -S 2>&1 < %s | FileCheck %s
;
; RUN: llvm-profdata merge %S/Inputs/callbr.proftext -o %t.profdata
; RUN: opt < %s -passes=pgo-instr-use -pgo-test-profile-file=%t.profdata -S | FileCheck %s --check-prefix=USE
define i32 @a() {
entry:
; CHECK-NOT: ptrtoint ptr asm sideeffect
; CHECK: callbr void asm sideeffect
%retval = alloca i32, align 4
callbr void asm sideeffect "", "!i,~{dirflag},~{fpsr},~{flags}"() #1
to label %asm.fallthrough [label %b]
asm.fallthrough:
br label %b
b:
%0 = load i32, ptr %retval, align 4
ret i32 %0
}
; USE-LABEL: @a
; USE-SAME: !prof ![[BW_ENTRY:[0-9]+]]
; USE: callbr void asm sideeffect
; USE: to label
; USE-SAME: !prof ![[BW_CALLBR:[0-9]+]]
; USE ![[BW_ENTRY]] = !{!"function_entry_count", i64 100}
; USE ![[BW_CALLBR]] = !{!"branch_weights", i32 80, i32 20}