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https://github.com/RPCS3/llvm-mirror.git
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9f55e00ae0
Summary: Indices for GEPs that index into a struct type should always be constants. This added more checks in `collectConstantCandidates:` which make sure constants for GEP pointer type are not hoisted. This fixed Bug https://bugs.llvm.org/show_bug.cgi?id=33538 Reviewers: ributzka, rnk Reviewed By: ributzka Subscribers: efriedma, llvm-commits, srhines, javed.absar, pirama Differential Revision: https://reviews.llvm.org/D34576 llvm-svn: 306704
38 lines
2.0 KiB
LLVM
38 lines
2.0 KiB
LLVM
; RUN: opt -consthoist -S < %s | FileCheck %s
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target triple = "thumbv6m-none-eabi"
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%T = type { i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32,
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i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32,
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i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32,
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i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32,
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i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32,
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i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32,
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i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32,
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i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32,
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i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32,
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i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32,
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i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32,
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i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32,
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i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32,
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i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32,
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i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32,
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i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32,
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i32, i32, i32, i32, i32, i32 }
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; Indices for GEPs that index into a struct type should not be hoisted.
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define i32 @test1(%T* %P) nounwind {
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; CHECK-LABEL: @test1
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; CHECK: %const = bitcast i32 256 to i32
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; CHECK: %addr1 = getelementptr %T, %T* %P, i32 %const, i32 256
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; CHECK: %addr2 = getelementptr %T, %T* %P, i32 %const, i32 256
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; The first index into the pointer is hoisted, but the second one into the
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; struct isn't.
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%addr1 = getelementptr %T, %T* %P, i32 256, i32 256
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%tmp1 = load i32, i32* %addr1
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%addr2 = getelementptr %T, %T* %P, i32 256, i32 256
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%tmp2 = load i32, i32* %addr2
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%tmp4 = add i32 %tmp1, %tmp2
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ret i32 %tmp4
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}
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