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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
88 lines
2.6 KiB
LLVM
88 lines
2.6 KiB
LLVM
; RUN: llc -filetype=asm -o - < %s -mtriple arm-arm-netbsd-eabi -frame-pointer=all| FileCheck %s --check-prefix=CHECK-ARM
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; RUN: llc -filetype=asm -o - < %s -mtriple arm-arm-netbsd-eabi | FileCheck %s --check-prefix=CHECK-ARM-FP-ELIM
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define void @test1() {
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%tmp = alloca [ 64 x i32 ] , align 4
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ret void
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}
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; CHECK-ARM-LABEL: test1:
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; CHECK-ARM: .cfi_startproc
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; CHECK-ARM: sub sp, sp, #256
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; CHECK-ARM: .cfi_endproc
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; CHECK-ARM-FP-ELIM-LABEL: test1:
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; CHECK-ARM-FP-ELIM: .cfi_startproc
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; CHECK-ARM-FP-ELIM: sub sp, sp, #256
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; CHECK-ARM-FP-ELIM: .cfi_endproc
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define void @test2() {
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%tmp = alloca [ 4168 x i8 ] , align 4
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ret void
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}
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; CHECK-ARM-LABEL: test2:
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; CHECK-ARM: .cfi_startproc
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; CHECK-ARM: push {r4, r5, r11, lr}
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; CHECK-ARM: .cfi_def_cfa_offset 16
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; CHECK-ARM: .cfi_offset lr, -4
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; CHECK-ARM: .cfi_offset r11, -8
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; CHECK-ARM: .cfi_offset r5, -12
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; CHECK-ARM: .cfi_offset r4, -16
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; CHECK-ARM: add r11, sp, #8
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; CHECK-ARM: .cfi_def_cfa r11, 8
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; CHECK-ARM: sub sp, sp, #72
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; CHECK-ARM: sub sp, sp, #4096
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; CHECK-ARM: .cfi_endproc
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; FIXME: Misspelled CHECK-ARM-FP-ELIM
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; CHECK-ARM-FP_ELIM-LABEL: test2:
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; CHECK-ARM-FP_ELIM: .cfi_startproc
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; CHECK-ARM-FP_ELIM: push {r4, r5}
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; CHECK-ARM-FP_ELIM: .cfi_def_cfa_offset 8
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; CHECK-ARM-FP_ELIM: .cfi_offset 54, -4
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; CHECK-ARM-FP_ELIM: .cfi_offset r4, -8
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; CHECK-ARM-FP_ELIM: sub sp, sp, #72
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; CHECK-ARM-FP_ELIM: sub sp, sp, #4096
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; CHECK-ARM-FP_ELIM: .cfi_def_cfa_offset 4176
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; CHECK-ARM-FP_ELIM: .cfi_endproc
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define i32 @test3() {
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%retval = alloca i32, align 4
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%tmp = alloca i32, align 4
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%a = alloca [805306369 x i8], align 16
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store i32 0, i32* %tmp
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%tmp1 = load i32, i32* %tmp
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ret i32 %tmp1
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}
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; CHECK-ARM-LABEL: test3:
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; CHECK-ARM: .cfi_startproc
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; CHECK-ARM: push {r4, r5, r11, lr}
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; CHECK-ARM: .cfi_def_cfa_offset 16
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; CHECK-ARM: .cfi_offset lr, -4
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; CHECK-ARM: .cfi_offset r11, -8
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; CHECK-ARM: .cfi_offset r5, -12
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; CHECK-ARM: .cfi_offset r4, -16
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; CHECK-ARM: add r11, sp, #8
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; CHECK-ARM: .cfi_def_cfa r11, 8
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; CHECK-ARM: sub sp, sp, #16
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; CHECK-ARM: sub sp, sp, #805306368
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; CHECK-ARM: bic sp, sp, #15
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; CHECK-ARM: .cfi_endproc
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; CHECK-ARM-FP-ELIM-LABEL: test3:
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; CHECK-ARM-FP-ELIM: .cfi_startproc
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; CHECK-ARM-FP-ELIM: push {r4, r5, r11}
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; CHECK-ARM-FP-ELIM: .cfi_def_cfa_offset 12
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; CHECK-ARM-FP-ELIM: .cfi_offset r11, -4
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; CHECK-ARM-FP-ELIM: .cfi_offset r5, -8
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; CHECK-ARM-FP-ELIM: .cfi_offset r4, -12
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; CHECK-ARM-FP-ELIM: add r11, sp, #8
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; CHECK-ARM-FP-ELIM: .cfi_def_cfa r11, 4
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; CHECK-ARM-FP-ELIM: sub sp, sp, #20
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; CHECK-ARM-FP-ELIM: sub sp, sp, #805306368
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; CHECK-ARM-FP-ELIM: bic sp, sp, #15
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; CHECK-ARM-FP-ELIM: .cfi_endproc
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