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TheRock/compiler/amd-llvm/llvm/test/Transforms/SimplifyCFG/switchToSelect-domtree-preservation-edgecase.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

58 lines
2.0 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -sink-common-insts=1 < %s | FileCheck %s
declare void @widget(i8)
define void @baz(i8 %arg, i8 %arg10, i1 %arg11) {
; CHECK-LABEL: @baz(
; CHECK-NEXT: bb:
; CHECK-NEXT: br label [[BB12:%.*]]
; CHECK: bb12:
; CHECK-NEXT: [[TMP:%.*]] = icmp eq i8 [[ARG:%.*]], 0
; CHECK-NEXT: br i1 [[TMP]], label [[BB17:%.*]], label [[BB13:%.*]]
; CHECK: bb13:
; CHECK-NEXT: tail call void @widget(i8 11)
; CHECK-NEXT: [[SWITCH_SELECTCMP:%.*]] = icmp eq i8 [[ARG10:%.*]], 73
; CHECK-NEXT: [[SWITCH_SELECT:%.*]] = select i1 [[SWITCH_SELECTCMP]], i8 44, i8 22
; CHECK-NEXT: [[SWITCH_SELECTCMP1:%.*]] = icmp eq i8 [[ARG10]], 68
; CHECK-NEXT: [[SWITCH_SELECT2:%.*]] = select i1 [[SWITCH_SELECTCMP1]], i8 33, i8 [[SWITCH_SELECT]]
; CHECK-NEXT: tail call void @widget(i8 [[SWITCH_SELECT2]])
; CHECK-NEXT: br label [[BB17]]
; CHECK: bb17:
; CHECK-NEXT: br i1 [[ARG11:%.*]], label [[BB12]], label [[BB18:%.*]]
; CHECK: bb18:
; CHECK-NEXT: ret void
;
bb:
br label %bb12
bb12: ; preds = %bb17, %bb
%tmp = icmp eq i8 %arg, 0
br i1 %tmp, label %bb17, label %bb13
bb13: ; preds = %bb12
tail call void @widget(i8 11)
switch i8 %arg10, label %bb14 [
i8 68, label %bb15
i8 73, label %bb16
]
bb14: ; preds = %bb13
tail call void @widget(i8 22)
br label %bb17
bb15: ; preds = %bb13
tail call void @widget(i8 33)
br label %bb17
bb16: ; preds = %bb13
tail call void @widget(i8 44)
br label %bb17
bb17: ; preds = %bb16, %bb15, %bb14, %bb12
br i1 %arg11, label %bb12, label %bb18
bb18: ; preds = %bb17
ret void
}