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llvm-project/llvm/test/CodeGen/X86/ret-addr.ll

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Replace "no-frame-pointer-*" function attributes with "frame-pointer" 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
2019-01-14 18:55:55 +08:00
; RUN: llc < %s -frame-pointer=all -mtriple=i686-- | not grep xor
; RUN: llc < %s -frame-pointer=all -mtriple=x86_64-- | not grep xor
Add support for non-zero __builtin_return_address values on X86. llvm-svn: 62338
2009-01-17 03:25:27 +08:00
define i8* @h() nounwind readnone optsize {
entry:
%0 = tail call i8* @llvm.returnaddress(i32 2) ; <i8*> [#uses=1]
ret i8* %0
}
declare i8* @llvm.returnaddress(i32) nounwind readnone
define i8* @g() nounwind readnone optsize {
entry:
%0 = tail call i8* @llvm.returnaddress(i32 1) ; <i8*> [#uses=1]
ret i8* %0
}
define i8* @f() nounwind readnone optsize {
entry:
%0 = tail call i8* @llvm.returnaddress(i32 0) ; <i8*> [#uses=1]
ret i8* %0
}