5a56a25b0b
The code paths in the absence of TargetMachine, TargetLowering or TargetRegisterInfo are poorly tested. As rL285987 said, requiring TargetPassConfig allows us to delete many (untested) checks littered everywhere. Reviewed By: arsenm Differential Revision: https://reviews.llvm.org/D73754
38 lines
922 B
LLVM
38 lines
922 B
LLVM
; RUN: opt -codegenprepare -S -mtriple=x86_64 < %s | FileCheck %s
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; Test that an invalid CFG is not created by splitIndirectCriticalEdges
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; transformation when the 'target' block is a loop to itself.
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; CHECK: .split:
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; CHECK: br label %while.body.clone
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; CHECK: if.else1:
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; CHECK: indirectbr
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; CHECK: while.body.clone:
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; CHECK: br label %.split
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define void @test() {
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entry:
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br label %if.else
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if.else:
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br i1 undef, label %while.body, label %preheader
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preheader:
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br label %if.else1
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if.then:
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unreachable
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while.body:
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%dest.sroa = phi i32 [ %1, %while.body ], [ undef, %if.else1 ], [ undef, %if.else ]
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%0 = inttoptr i32 %dest.sroa to i8*
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%incdec.ptr = getelementptr inbounds i8, i8* %0, i32 -1
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%1 = ptrtoint i8* %incdec.ptr to i32
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store i8 undef, i8* %incdec.ptr, align 1
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br label %while.body
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if.else1:
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indirectbr i8* undef, [label %if.then, label %while.body, label %if.else, label %if.else1]
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}
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