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llvm-project/llvm/test/DebugInfo/Mips/prologue_end.ll

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[mips] Remove incorrect DebugLoc entries from prologue This has been causing the prologue_end to be incorrectly positioned. Patch by Vladimir Radosavljevic. Differential Revision: http://reviews.llvm.org/D11293 llvm-svn: 246309
2015-08-29 01:53:26 +08:00
; RUN: llc -O0 -mtriple mips-unknown-linux-gnu -relocation-model=static < %s | FileCheck %s -check-prefix=STATIC
; RUN: llc -O0 -mtriple mips-unknown-linux-gnu -relocation-model=static -disable-fp-elim < %s | FileCheck %s -check-prefix=STATIC-FP
; RUN: llc -O0 -mtriple mips-unknown-linux-gnu -relocation-model=pic < %s | FileCheck %s -check-prefix=PIC
; RUN: llc -O0 -mtriple mips-unknown-linux-gnu -relocation-model=pic -disable-fp-elim < %s | FileCheck %s -check-prefix=PIC-FP
; Generated using clang -O0 -emit-llvm -S -target mipsel-unknown-linux -g test.c -o test.ll
; test.c:
;
; void hello_world(void) {
; printf("Hello, World!\n");
; }
@.str = private unnamed_addr constant [15 x i8] c"Hello, World!\0A\00", align 1
DI: Reverse direction of subprogram -> function edge. Previously, subprograms contained a metadata reference to the function they described. Because most clients need to get or set a subprogram for a given function rather than the other way around, this created unneeded inefficiency. For example, many passes needed to call the function llvm::makeSubprogramMap() to build a mapping from functions to subprograms, and the IR linker needed to fix up function references in a way that caused quadratic complexity in the IR linking phase of LTO. This change reverses the direction of the edge by storing the subprogram as function-level metadata and removing DISubprogram's function field. Since this is an IR change, a bitcode upgrade has been provided. Fixes PR23367. An upgrade script for textual IR for out-of-tree clients is attached to the PR. Differential Revision: http://reviews.llvm.org/D14265 llvm-svn: 252219
2015-11-06 06:03:56 +08:00
define void @hello_world() #0 !dbg !4 {
[mips] Remove incorrect DebugLoc entries from prologue This has been causing the prologue_end to be incorrectly positioned. Patch by Vladimir Radosavljevic. Differential Revision: http://reviews.llvm.org/D11293 llvm-svn: 246309
2015-08-29 01:53:26 +08:00
entry:
; STATIC: addiu $sp, $sp, -{{[0-9]+}}
; STATIC: sw $ra, {{[0-9]+}}($sp)
; STATIC: .loc 1 2 3 prologue_end
; STATIC: lui $[[R0:[0-9]+]], %hi($.str)
; STATIC-FP: addiu $sp, $sp, -{{[0-9]+}}
; STATIC-FP: sw $ra, {{[0-9]+}}($sp)
; STATIC-FP: sw $fp, {{[0-9]+}}($sp)
; STATIC-FP: move $fp, $sp
; STATIC-FP: .loc 1 2 3 prologue_end
; STATIC-FP: lui $[[R0:[0-9]+]], %hi($.str)
; PIC: lui $[[R0:[0-9]+]], %hi(_gp_disp)
; PIC: addiu $[[R0]], $[[R0]], %lo(_gp_disp)
; PIC: addiu $sp, $sp, -{{[0-9]+}}
; PIC: sw $ra, {{[0-9]+}}($sp)
; PIC: addu $[[R1:[0-9]+]], $[[R0]], $25
; PIC: .loc 1 2 3 prologue_end
; PIC: lw $[[R2:[0-9]+]], %got($.str)($[[R1]])
; PIC-FP: lui $[[R0:[0-9]+]], %hi(_gp_disp)
; PIC-FP: addiu $[[R0]], $[[R0]], %lo(_gp_disp)
; PIC-FP: addiu $sp, $sp, -{{[0-9]+}}
; PIC-FP: sw $ra, {{[0-9]+}}($sp)
; PIC-FP: sw $fp, {{[0-9]+}}($sp)
; PIC-FP: move $fp, $sp
; PIC-FP: addu $[[R1:[0-9]+]], $[[R0]], $25
; PIC-FP: .loc 1 2 3 prologue_end
; PIC-FP: lw $[[R2:[0-9]+]], %got($.str)($[[R1]])
%call = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i32 0, i32 0)), !dbg !10
ret void, !dbg !11
}
declare i32 @printf(i8*, ...)
attributes #0 = { nounwind }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!7, !8}
!llvm.ident = !{!9}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0", isOptimized: false, runtimeVersion: 0, emissionKind: 1, enums: !2, subprograms: !3)
!1 = !DIFile(filename: "test.c", directory: "/tmp")
!2 = !{}
!3 = !{!4}
DI: Reverse direction of subprogram -> function edge. Previously, subprograms contained a metadata reference to the function they described. Because most clients need to get or set a subprogram for a given function rather than the other way around, this created unneeded inefficiency. For example, many passes needed to call the function llvm::makeSubprogramMap() to build a mapping from functions to subprograms, and the IR linker needed to fix up function references in a way that caused quadratic complexity in the IR linking phase of LTO. This change reverses the direction of the edge by storing the subprogram as function-level metadata and removing DISubprogram's function field. Since this is an IR change, a bitcode upgrade has been provided. Fixes PR23367. An upgrade script for textual IR for out-of-tree clients is attached to the PR. Differential Revision: http://reviews.llvm.org/D14265 llvm-svn: 252219
2015-11-06 06:03:56 +08:00
!4 = distinct !DISubprogram(name: "hello_world", scope: !1, file: !1, line: 1, type: !5, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, variables: !2)
[mips] Remove incorrect DebugLoc entries from prologue This has been causing the prologue_end to be incorrectly positioned. Patch by Vladimir Radosavljevic. Differential Revision: http://reviews.llvm.org/D11293 llvm-svn: 246309
2015-08-29 01:53:26 +08:00
!5 = !DISubroutineType(types: !6)
!6 = !{null}
!7 = !{i32 2, !"Dwarf Version", i32 4}
!8 = !{i32 2, !"Debug Info Version", i32 3}
!9 = !{!"clang version 3.8.0"}
!10 = !DILocation(line: 2, column: 3, scope: !4)
!11 = !DILocation(line: 3, column: 1, scope: !4)