aa2009fe78
First step after e113317958,
in these tests, DomTree is valid afterwards, so mark them as such,
so that they don't regress.
In further steps, SimplifyCFG transforms shall taught to preserve DomTree,
in as small steps as possible.
36 lines
1.1 KiB
LLVM
36 lines
1.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S %s | FileCheck %s
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%foo = type { i32 (%foo)*, i32 }
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declare i32 @putchar(i32)
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define i32 @intercept(%foo %f) {
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; CHECK-LABEL: @intercept(
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; CHECK-NEXT: [[FN:%.*]] = extractvalue [[FOO:%.*]] %f, 0
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; CHECK-NEXT: [[X:%.*]] = extractvalue [[FOO]] %f, 1
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; CHECK-NEXT: [[X0:%.*]] = icmp eq i32 [[X]], 0
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; CHECK-NEXT: br i1 [[X0]], label [[ZERO:%.*]], label [[NONZERO:%.*]]
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; CHECK: Zero:
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; CHECK-NEXT: [[R0:%.*]] = musttail call i32 [[FN]](%foo [[F:%.*]])
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; CHECK-NEXT: ret i32 [[R0]]
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; CHECK: Nonzero:
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; CHECK-NEXT: [[R1:%.*]] = tail call i32 [[FN]](%foo [[F]])
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; CHECK-NEXT: [[TMP1:%.*]] = tail call i32 @putchar(i32 [[R1]])
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; CHECK-NEXT: ret i32 [[R1]]
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;
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%fn = extractvalue %foo %f, 0
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%x = extractvalue %foo %f, 1
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%x0 = icmp eq i32 %x, 0
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br i1 %x0, label %Zero, label %Nonzero
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Zero:
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%r0 = musttail call i32 %fn(%foo %f)
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ret i32 %r0
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Nonzero:
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%r1 = tail call i32 %fn(%foo %f)
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%1 = tail call i32 @putchar(i32 %r1)
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ret i32 %r1
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}
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