b7cef81fd3
Part of the effort to refactoring frame pointer code generation. We used to use two function attributes "no-frame-pointer-elim" and "no-frame-pointer-elim-non-leaf" to represent three kinds of frame pointer usage: (all) frames use frame pointer, (non-leaf) frames use frame pointer, (none) frame use frame pointer. This CL makes the idea explicit by using only one enum function attribute "frame-pointer" Option "-frame-pointer=" replaces "-disable-fp-elim" for tools such as llc. "no-frame-pointer-elim" and "no-frame-pointer-elim-non-leaf" are still supported for easy migration to "frame-pointer". tests are mostly updated with // replace command line args ‘-disable-fp-elim=false’ with ‘-frame-pointer=none’ grep -iIrnl '\-disable-fp-elim=false' * | xargs sed -i '' -e "s/-disable-fp-elim=false/-frame-pointer=none/g" // replace command line args ‘-disable-fp-elim’ with ‘-frame-pointer=all’ grep -iIrnl '\-disable-fp-elim' * | xargs sed -i '' -e "s/-disable-fp-elim/-frame-pointer=all/g" Patch by Yuanfang Chen (tabloid.adroit)! Differential Revision: https://reviews.llvm.org/D56351 llvm-svn: 351049
19 lines
585 B
LLVM
19 lines
585 B
LLVM
; RUN: llc < %s -march=mipsel -mcpu=mips32 -fast-isel -frame-pointer=all -relocation-model=pic < %s
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; Test that negative array access don't crash constant synthesis when fast isel
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; generates negative offsets.
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define i16 @test() {
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%a = alloca [4 x i16], align 4
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%arrayidx = getelementptr inbounds [4 x i16], [4 x i16]* %a, i32 0, i32 -2
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%b = load i16, i16* %arrayidx, align 2
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ret i16 %b
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}
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define void @test2() {
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%a = alloca [4 x i16], align 4
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%arrayidx = getelementptr inbounds [4 x i16], [4 x i16]* %a, i32 0, i32 -2
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store i16 2, i16* %arrayidx, align 2
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ret void
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}
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