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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
39 lines
1.1 KiB
LLVM
39 lines
1.1 KiB
LLVM
; RUN: llc -mtriple arm-eabi -frame-pointer=all -filetype asm -o - %s \
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; RUN: | FileCheck -check-prefix CHECK-ARM %s
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; RUN: llc -mtriple thumb-eabi -frame-pointer=all -filetype asm -o - %s \
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; RUN: | FileCheck -check-prefix CHECK-THUMB %s
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; RUN: llc -mtriple arm-darwin -frame-pointer=all -filetype asm -o - %s \
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; RUN: | FileCheck -check-prefix CHECK-DARWIN-ARM %s
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; RUN: llc -mtriple thumb-darwin -frame-pointer=all -filetype asm -o - %s \
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; RUN: | FileCheck -check-prefix CHECK-DARWIN-THUMB %s
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declare void @callee(i32)
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define i32 @calleer(i32 %i) {
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entry:
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%i.addr = alloca i32, align 4
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%j = alloca i32, align 4
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store i32 %i, i32* %i.addr, align 4
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%0 = load i32, i32* %i.addr, align 4
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%add = add nsw i32 %0, 1
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store i32 %add, i32* %j, align 4
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%1 = load i32, i32* %j, align 4
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call void @callee(i32 %1)
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%2 = load i32, i32* %j, align 4
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%add1 = add nsw i32 %2, 1
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ret i32 %add1
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}
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; CHECK-ARM: push {r11, lr}
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; CHECK-ARM: mov r11, sp
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; CHECK-THUMB: push {r7, lr}
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; CHECK-THUMB: add r7, sp, #0
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; CHECK-DARWIN-ARM: push {r7, lr}
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; CHECK-DARWIN-THUMB: push {r7, lr}
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