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de89228dfb
Change `llc` and `opt` to run `verifyModule()`. This ensures that we
check the full module before `FunctionPass::doInitialization()` ever
gets called (I was getting crashes in `DwarfDebug` instead of verifier
failures when testing a WIP patch that checks operands of compile
units). In `opt`, also move up debug-info-stripping so that it still
runs before verification.
There was a fair bit of broken code that was sitting in tree.
Interestingly, some were cases of a `select` that referred to itself in
`-instcombine` tests (apparently an intermediate result). I split them
off to `*-noverify.ll` tests with RUN lines like this:
opt < %s -S -disable-verify -instcombine | opt -S | FileCheck %s
This avoids verifying the input file (so we can get the broken code into
`-instcombine), but still verifies the output with a second call to
`opt` (to verify that `-instcombine` will clean it up like it should).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233432 91177308-0d34-0410-b5e6-96231b3b80d8
20 lines
703 B
LLVM
20 lines
703 B
LLVM
; RUN: opt < %s -instcombine | llvm-dis
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@X = global i8 0 ; <i8*> [#uses=3]
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@Y = global i8 12 ; <i8*> [#uses=2]
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declare void @llvm.memmove.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)
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declare void @llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)
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declare void @llvm.memset.p0i8.i32(i8*, i8, i32, i32, i1)
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define void @zero_byte_test() {
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; These process zero bytes, so they are a noop.
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call void @llvm.memmove.p0i8.p0i8.i32( i8* @X, i8* @Y, i32 0, i32 128, i1 false )
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call void @llvm.memcpy.p0i8.p0i8.i32( i8* @X, i8* @Y, i32 0, i32 128, i1 false )
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call void @llvm.memset.p0i8.i32( i8* @X, i8 123, i32 0, i32 128, i1 false )
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ret void
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}
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