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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
31 lines
784 B
LLVM
31 lines
784 B
LLVM
; RUN: llc -mtriple=arm-eabi %s -o /dev/null
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; RUN: llc -mtriple=armv6-linux-gnueabi %s -o - | FileCheck %s
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; RUN: llc -mtriple=armv6-linux-gnu --frame-pointer=all %s -o - \
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; RUN: | FileCheck %s -check-prefix CHECK-FP-ELIM
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; RUN: llc -mtriple=armv6-apple-ios %s -o - \
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; RUN: | FileCheck %s -check-prefix CHECK-FP-ELIM
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@str = internal constant [12 x i8] c"Hello World\00"
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define i32 @main() "no-frame-pointer-elim"="true" {
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%tmp = call i32 @puts( i8* getelementptr ([12 x i8], [12 x i8]* @str, i32 0, i64 0) ) ; <i32> [#uses=0]
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ret i32 0
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}
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declare i32 @puts(i8*)
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; CHECK-LABEL: main
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; CHECK-NOT: mov
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; CHECK: mov r11, sp
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; CHECK-NOT: mov
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; CHECK: mov r0, #0
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; CHECK-NOT: mov
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; CHECK-FP-ELIM-LABEL: main
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; CHECK-FP-ELIM: mov
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; CHECK-FP-ELIM: mov
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; CHECK-FP-ELIM-NOT: mov
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