llvm-6502/test/CodeGen/ARM/debug-frame-large-stack.ll
Duncan P. N. Exon Smith 83902832de Revert "Revert "DI: Fold constant arguments into a single MDString""
This reverts commit r218918, effectively reapplying r218914 after fixing
an Ocaml bindings test and an Asan crash.  The root cause of the latter
was a tightened-up check in `DILexicalBlock::Verify()`, so I'll file a
PR to investigate who requires the loose check (and why).

Original commit message follows.

--

This patch addresses the first stage of PR17891 by folding constant
arguments together into a single MDString.  Integers are stringified and
a `\0` character is used as a separator.

Part of PR17891.

Note: I've attached my testcases upgrade scripts to the PR.  If I've
just broken your out-of-tree testcases, they might help.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219010 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-03 20:01:09 +00:00

100 lines
3.5 KiB
LLVM

; RUN: llc -filetype=asm -o - < %s -mtriple arm-arm-none-eabi -disable-fp-elim| FileCheck %s --check-prefix=CHECK-ARM
; RUN: llc -filetype=asm -o - < %s -mtriple arm-arm-none-eabi | FileCheck %s --check-prefix=CHECK-ARM-FP-ELIM
define void @test1() {
%tmp = alloca [ 64 x i32 ] , align 4
ret void
}
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!8, !9}
!llvm.ident = !{!10}
!0 = metadata !{metadata !"0x11\0012\00clang version 3.5 \000\00\000\00\000", metadata !1, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [/tmp/large.c] [DW_LANG_C99]
!1 = metadata !{metadata !"large.c", metadata !"/tmp"}
!2 = metadata !{}
!3 = metadata !{metadata !4}
!4 = metadata !{metadata !"0x2e\00test1\00test1\00\001\000\001\000\006\000\000\001", metadata !1, metadata !5, metadata !6, null, void ()* @test1, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 1] [def] [test1]
!5 = metadata !{metadata !"0x29", metadata !1} ; [ DW_TAG_file_type ] [/tmp/large.c]
!6 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !7, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!7 = metadata !{null}
!8 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
!9 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
!10 = metadata !{metadata !"clang version 3.5 "}
!11 = metadata !{i32 2, i32 0, metadata !4, null}
; CHECK-ARM-LABEL: test1:
; CHECK-ARM: .cfi_startproc
; CHECK-ARM: sub sp, sp, #256
; CHECK-ARM: .cfi_endproc
; CHECK-ARM-FP-ELIM-LABEL: test1:
; CHECK-ARM-FP-ELIM: .cfi_startproc
; CHECK-ARM-FP-ELIM: sub sp, sp, #256
; CHECK-ARM-FP-ELIM: .cfi_endproc
define void @test2() {
%tmp = alloca [ 4168 x i8 ] , align 4
ret void
}
; CHECK-ARM-LABEL: test2:
; CHECK-ARM: .cfi_startproc
; CHECK-ARM: push {r4, r5}
; CHECK-ARM: .cfi_def_cfa_offset 8
; CHECK-ARM: .cfi_offset r5, -4
; CHECK-ARM: .cfi_offset r4, -8
; CHECK-ARM: sub sp, sp, #72
; CHECK-ARM: sub sp, sp, #4096
; CHECK-ARM: .cfi_def_cfa_offset 4176
; CHECK-ARM: .cfi_endproc
; CHECK-ARM-FP_ELIM-LABEL: test2:
; CHECK-ARM-FP_ELIM: .cfi_startproc
; CHECK-ARM-FP_ELIM: push {r4, r5}
; CHECK-ARM-FP_ELIM: .cfi_def_cfa_offset 8
; CHECK-ARM-FP_ELIM: .cfi_offset 54, -4
; CHECK-ARM-FP_ELIM: .cfi_offset r4, -8
; CHECK-ARM-FP_ELIM: sub sp, sp, #72
; CHECK-ARM-FP_ELIM: sub sp, sp, #4096
; CHECK-ARM-FP_ELIM: .cfi_def_cfa_offset 4176
; CHECK-ARM-FP_ELIM: .cfi_endproc
define i32 @test3() {
%retval = alloca i32, align 4
%tmp = alloca i32, align 4
%a = alloca [805306369 x i8], align 16
store i32 0, i32* %tmp
%tmp1 = load i32* %tmp
ret i32 %tmp1
}
; CHECK-ARM-LABEL: test3:
; CHECK-ARM: .cfi_startproc
; CHECK-ARM: push {r4, r5, r11}
; CHECK-ARM: .cfi_def_cfa_offset 12
; CHECK-ARM: .cfi_offset r11, -4
; CHECK-ARM: .cfi_offset r5, -8
; CHECK-ARM: .cfi_offset r4, -12
; CHECK-ARM: add r11, sp, #8
; CHECK-ARM: .cfi_def_cfa r11, 4
; CHECK-ARM: sub sp, sp, #20
; CHECK-ARM: sub sp, sp, #805306368
; CHECK-ARM: bic sp, sp, #15
; CHECK-ARM: .cfi_endproc
; CHECK-ARM-FP-ELIM-LABEL: test3:
; CHECK-ARM-FP-ELIM: .cfi_startproc
; CHECK-ARM-FP-ELIM: push {r4, r5, r11}
; CHECK-ARM-FP-ELIM: .cfi_def_cfa_offset 12
; CHECK-ARM-FP-ELIM: .cfi_offset r11, -4
; CHECK-ARM-FP-ELIM: .cfi_offset r5, -8
; CHECK-ARM-FP-ELIM: .cfi_offset r4, -12
; CHECK-ARM-FP-ELIM: add r11, sp, #8
; CHECK-ARM-FP-ELIM: .cfi_def_cfa r11, 4
; CHECK-ARM-FP-ELIM: sub sp, sp, #20
; CHECK-ARM-FP-ELIM: sub sp, sp, #805306368
; CHECK-ARM-FP-ELIM: bic sp, sp, #15
; CHECK-ARM-FP-ELIM: .cfi_endproc