diff options
Diffstat (limited to 'llvm/test/DebugInfo/Generic/simplifycfg_sink_last_inst.ll')
| -rw-r--r-- | llvm/test/DebugInfo/Generic/simplifycfg_sink_last_inst.ll | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/llvm/test/DebugInfo/Generic/simplifycfg_sink_last_inst.ll b/llvm/test/DebugInfo/Generic/simplifycfg_sink_last_inst.ll index a62def35acc..2185fbb845e 100644 --- a/llvm/test/DebugInfo/Generic/simplifycfg_sink_last_inst.ll +++ b/llvm/test/DebugInfo/Generic/simplifycfg_sink_last_inst.ll @@ -48,6 +48,43 @@ if.end: ; preds = %if.else, %if.then ret i32 %b.addr.0, !dbg !14 } +; When the commoned instructions have the same debug location, this location +; should be used as the location of the common instruction. + +; Generated from source (with -mllvm -no-discriminators and -gno-column-info): + +; int test2(int a, int b) { +; if(a) b -= foo(); else b -= bar(); +; return b; +; } + +; CHECK: define i32 @test2 +; CHECK-LABEL: if.end: +; CHECK: %[[PHI:.*]] = phi i32 [ %call1, %if.else ], [ %call, %if.then ] +; CHECK: sub nsw i32 %b, %[[PHI]], !dbg ![[DBG:.*]] +; CHECK: ret i32 +; CHECK: ![[DBG]] = !DILocation(line: 17, scope: !{{.*}}) + +define i32 @test2(i32 %a, i32 %b) !dbg !15 { +entry: + %tobool = icmp ne i32 %a, 0, !dbg !16 + br i1 %tobool, label %if.then, label %if.else, !dbg !16 + +if.then: ; preds = %entry + %call = call i32 @foo(), !dbg !16 + %sub = sub nsw i32 %b, %call, !dbg !16 + br label %if.end, !dbg !16 + +if.else: ; preds = %entry + %call1 = call i32 @bar(), !dbg !16 + %sub2 = sub nsw i32 %b, %call1, !dbg !16 + br label %if.end + +if.end: ; preds = %if.else, %if.then + %b.addr.0 = phi i32 [ %sub, %if.then ], [ %sub2, %if.else ] + ret i32 %b.addr.0, !dbg !17 +} + declare i32 @foo() declare i32 @bar() @@ -68,3 +105,6 @@ declare i32 @bar() !12 = !DILocation(line: 12, column: 10, scope: !6) !13 = !DILocation(line: 12, column: 7, scope: !6) !14 = !DILocation(line: 13, column: 3, scope: !6) +!15 = distinct !DISubprogram(name: "test2", scope: !1, file: !1, line: 16, type: !7, isLocal: false, isDefinition: true, scopeLine: 16, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2) +!16 = !DILocation(line: 17, scope: !15) +!17 = !DILocation(line: 18, scope: !15) |
