forked from OSchip/llvm-project
77 lines
2.5 KiB
LLVM
77 lines
2.5 KiB
LLVM
|
; RUN: llc %s -mtriple=x86_64-unknown-unknown -use-unknown-locations=true -o - | FileCheck %s
|
||
|
|
|
||
|
|
; Generated with "clang -gline-tables-only -c -emit-llvm -o - | opt -sroa -S"
|
||
|
|
; from source:
|
||
|
|
;
|
||
|
|
; extern int foo(int);
|
||
|
|
; extern int bar(int);
|
||
|
|
;
|
||
|
|
; int test(int a, int b) {
|
||
|
|
; if(b)
|
||
|
|
; a += foo(a);
|
||
|
|
; else
|
||
|
|
; a += bar(a);
|
||
|
|
; return a;
|
||
|
|
; }
|
||
|
|
|
||
|
|
; When tail-merging the debug location of the common tail should be removed.
|
||
|
|
|
||
|
|
; CHECK-LABEL: test:
|
||
|
|
; CHECK: movl %edi, [[REG:%.*]]
|
||
|
|
; CHECK: testl %esi, %esi
|
||
|
|
; CHECK: je [[ELSE:.LBB[0-9]+_[0-9]+]]
|
||
|
|
; CHECK: .loc 1 6 10
|
||
|
|
; CHECK: callq foo
|
||
|
|
; CHECK: jmp [[TAIL:.LBB[0-9]+_[0-9]+]]
|
||
|
|
; CHECK: [[ELSE]]:
|
||
|
|
; CHECK: .loc 1 8 10
|
||
|
|
; CHECK: callq bar
|
||
|
|
; CHECK: [[TAIL]]:
|
||
|
|
; CHECK: .loc 1 0 0
|
||
|
|
; CHECK: addl [[REG]], %eax
|
||
|
|
; CHECK: .loc 1 9 3
|
||
|
|
|
||
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
||
|
|
target triple = "x86_64-unknown-linux-gnu"
|
||
|
|
|
||
|
|
define i32 @test(i32 %a, i32 %b) !dbg !6 {
|
||
|
|
entry:
|
||
|
|
%tobool = icmp ne i32 %b, 0, !dbg !8
|
||
|
|
br i1 %tobool, label %if.then, label %if.else, !dbg !8
|
||
|
|
|
||
|
|
if.then: ; preds = %entry
|
||
|
|
%call = call i32 @foo(i32 %a), !dbg !9
|
||
|
|
%add = add nsw i32 %a, %call, !dbg !10
|
||
|
|
br label %if.end, !dbg !11
|
||
|
|
|
||
|
|
if.else: ; preds = %entry
|
||
|
|
%call1 = call i32 @bar(i32 %a), !dbg !12
|
||
|
|
%add2 = add nsw i32 %a, %call1, !dbg !13
|
||
|
|
br label %if.end
|
||
|
|
|
||
|
|
if.end: ; preds = %if.else, %if.then
|
||
|
|
%a.addr.0 = phi i32 [ %add, %if.then ], [ %add2, %if.else ]
|
||
|
|
ret i32 %a.addr.0, !dbg !14
|
||
|
|
}
|
||
|
|
|
||
|
|
declare i32 @foo(i32)
|
||
|
|
declare i32 @bar(i32)
|
||
|
|
|
||
|
|
!llvm.dbg.cu = !{!0}
|
||
|
|
!llvm.module.flags = !{!3, !4}
|
||
|
|
|
||
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "", isOptimized: false, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2)
|
||
|
|
!1 = !DIFile(filename: "test.c", directory: "")
|
||
|
|
!2 = !{}
|
||
|
|
!3 = !{i32 2, !"Dwarf Version", i32 4}
|
||
|
|
!4 = !{i32 2, !"Debug Info Version", i32 3}
|
||
|
|
!6 = distinct !DISubprogram(name: "test", scope: !1, file: !1, line: 4, type: !7, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
|
||
|
|
!7 = !DISubroutineType(types: !2)
|
||
|
|
!8 = !DILocation(line: 5, column: 6, scope: !6)
|
||
|
|
!9 = !DILocation(line: 6, column: 10, scope: !6)
|
||
|
|
!10 = !DILocation(line: 6, column: 7, scope: !6)
|
||
|
|
!11 = !DILocation(line: 6, column: 5, scope: !6)
|
||
|
|
!12 = !DILocation(line: 8, column: 10, scope: !6)
|
||
|
|
!13 = !DILocation(line: 8, column: 7, scope: !6)
|
||
|
|
!14 = !DILocation(line: 9, column: 3, scope: !6)
|