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llvm-mirror/test/Transforms/SimplifyCFG/merge-duplicate-conditional-ret-val.ll
Roman Lebedev 7ff25998ae [SimplifyCFG] Teach SimplifyCondBranchToTwoReturns() to preserve DomTree, part 1
... for the general case of returning a value.
2020-12-20 00:18:35 +03:00

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530 B
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -simplifycfg-dup-ret -S | FileCheck %s
declare void @bar()
declare void @baz()
define i8 @foo(i1 %c, i8 %v0, i8 %v1) {
; CHECK-LABEL: @foo(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[SPEC_SELECT:%.*]] = select i1 [[C:%.*]], i8 [[V0:%.*]], i8 [[V1:%.*]]
; CHECK-NEXT: ret i8 [[SPEC_SELECT]]
;
entry:
br i1 %c, label %true, label %false
true:
ret i8 %v0
false:
ret i8 %v1
}