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TheRock/compiler/amd-llvm/llvm/test/tools/llvm-reduce/reduce-bb-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

45 lines
1.0 KiB
LLVM

; RUN: llvm-reduce %s -o %t --abort-on-invalid-reduction --delta-passes=basic-blocks --test FileCheck --test-arg %s --test-arg --check-prefix=INTERESTING --test-arg --input-file
; RUN: FileCheck %s --input-file %t --check-prefixes=CHECK,INTERESTING
; CHECK-LABEL: define i32 @keep_callbr(ptr %p, i1 %cond) {
; CHECK: entry1:
; CHECK-NEXT: callbr void asm
; INTERESTING: store i32 0,
; INTERESTING: store i32 1,
define i32 @keep_callbr(ptr %p, i1 %cond) {
entry1:
callbr void asm sideeffect "", "!i,~{dirflag},~{fpsr},~{flags}"()
to label %for.cond [label %preheader]
for.cond:
store i32 0, ptr %p
ret i32 0
preheader:
store i32 1, ptr %p
ret i32 1
}
; CHECK-LABEL: define i32 @drop_callbr(ptr %p, i1 %cond) {
; CHECK: entry1:
; CHECK-NEXT: br
; INTERESTING: store i32 0,
define i32 @drop_callbr(ptr %p, i1 %cond) {
entry1:
callbr void asm sideeffect "", "!i,~{dirflag},~{fpsr},~{flags}"()
to label %for.cond [label %preheader]
for.cond:
store i32 0, ptr %p
ret i32 0
preheader:
store i32 1, ptr %p
ret i32 1
}