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TheRock/compiler/amd-llvm/llvm/test/Transforms/SimplifyCFG/dce-cond-after-folding-terminator.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

50 lines
1.3 KiB
LLVM

; RUN: opt -S <%s -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 | FileCheck %s
define void @test_br(i32 %x) {
entry:
; CHECK-LABEL: @test_br(
; CHECK-NEXT: entry:
; CHECK-NEXT: ret void
%cmp = icmp eq i32 %x, 10
br i1 %cmp, label %if.then, label %if.then
if.then: ; preds = %entry
br label %if.end
if.end: ; preds = %if.else, %if.then
ret void
}
define void @test_switch(i32 %x) nounwind {
entry:
; CHECK-LABEL: @test_switch(
; CHECK-NEXT: entry:
; CHECK-NEXT: ret void
%rem = srem i32 %x, 3
switch i32 %rem, label %sw.bb [
i32 1, label %sw.bb
i32 10, label %sw.bb
]
sw.bb: ; preds = %sw.default, %entry, %entry
br label %sw.epilog
sw.epilog: ; preds = %sw.bb
ret void
}
define void @test_indirectbr(i32 %x) {
entry:
; CHECK-LABEL: @test_indirectbr(
; CHECK-NEXT: entry:
; CHECK-NEXT: ret void
%label = bitcast ptr blockaddress(@test_indirectbr, %L1) to ptr
indirectbr ptr %label, [label %L1, label %L2]
L1: ; preds = %entry
ret void
L2: ; preds = %entry
ret void
}