d49984fa4f
Required for phase ordering changes to not regress Rust code with D145265. Reviewed By: nikic Differential Revision: https://reviews.llvm.org/D153391
30 lines
914 B
LLVM
30 lines
914 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
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; RUN: opt < %s -S -passes='simplifycfg<speculate-blocks>' | FileCheck %s --check-prefix=YES
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; RUN: opt < %s -S -passes='simplifycfg<no-speculate-blocks>' | FileCheck %s --check-prefix=NO
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define i32 @f(i1 %a) {
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; YES-LABEL: define i32 @f
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; YES-SAME: (i1 [[A:%.*]]) {
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; YES-NEXT: entry:
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; YES-NEXT: [[SPEC_SELECT:%.*]] = select i1 [[A]], i32 5, i32 2
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; YES-NEXT: ret i32 [[SPEC_SELECT]]
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;
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; NO-LABEL: define i32 @f
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; NO-SAME: (i1 [[A:%.*]]) {
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; NO-NEXT: entry:
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; NO-NEXT: br i1 [[A]], label [[BB:%.*]], label [[BB2:%.*]]
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; NO: bb:
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; NO-NEXT: br label [[BB2]]
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; NO: bb2:
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; NO-NEXT: [[R:%.*]] = phi i32 [ 2, [[ENTRY:%.*]] ], [ 5, [[BB]] ]
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; NO-NEXT: ret i32 [[R]]
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;
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entry:
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br i1 %a, label %bb, label %bb2
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bb:
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br label %bb2
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bb2:
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%r = phi i32 [ 2, %entry ], [ 5, %bb ]
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ret i32 %r
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}
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