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f7ea499702
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
54 lines
1.5 KiB
LLVM
54 lines
1.5 KiB
LLVM
; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc-unknown-linux-gnu | FileCheck %s -check-prefix=PPC32-NOFP
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; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc-unknown-linux-gnu -frame-pointer=all | FileCheck %s -check-prefix=PPC32-FP
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; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc64-unknown-linux-gnu | FileCheck %s -check-prefix=PPC64-NOFP
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; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc64-unknown-linux-gnu -frame-pointer=all | FileCheck %s -check-prefix=PPC64-FP
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define i32* @f1() nounwind {
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%tmp = alloca i32, i32 8191 ; <i32*> [#uses=1]
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ret i32* %tmp
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}
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; PPC32-NOFP: f1:
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; PPC32-NOFP: lis 0, -1
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; PPC32-NOFP: ori 0, 0, 32752
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; PPC32-NOFP: stwux 1, 1, 0
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; PPC32-NOFP-DAG: addi 3, 1, 20
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; PPC32-NOFP-DAG: lwz 31, 0(1)
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; PPC32-NOFP: mr 1, 31
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; PPC32-NOFP: mr 31, 0
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; PPC32-NOFP: blr
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; PPC32-FP: lis 0, -1
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; PPC32-FP: ori 0, 0, 32752
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; PPC32-FP: stwux 1, 1, 0
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; PPC32-FP: subf 0, 0, 1
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; PPC32-FP: addic 0, 0, -4
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; PPC32-FP: stwx 31, 0, 0
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; PPC32-FP: mr 31, 1
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; PPC32-FP: addi 3, 31, 16
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; PPC32-FP: lwz 31, 0(1)
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; PPC32-FP: lwz 0, -4(31)
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; PPC32-FP: mr 1, 31
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; PPC32-FP: mr 31, 0
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; PPC32-FP: blr
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; PPC64-NOFP: f1:
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; PPC64-NOFP: lis 0, -1
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; PPC64-NOFP: ori 0, 0, 32720
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; PPC64-NOFP: stdux 1, 1, 0
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; PPC64-NOFP: addi 3, 1, 52
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; PPC64-NOFP: ld 1, 0(1)
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; PPC64-NOFP: blr
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; PPC64-FP: f1:
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; PPC64-FP: lis 0, -1
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; PPC64-FP: ori 0, 0, 32704
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; PPC64-FP: std 31, -8(1)
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; PPC64-FP: stdux 1, 1, 0
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; PPC64-FP: mr 31, 1
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; PPC64-FP: addi 3, 31, 60
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; PPC64-FP: ld 1, 0(1)
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; PPC64-FP: ld 31, -8(1)
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; PPC64-FP: blr
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