Debug info: Fix PR16736 and rdar://problem/14990587.

A DBG_VALUE is register-indirect iff the first operand is a register
_and_ the second operand is an immediate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190821 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 63 insertions, 0 deletions

diff --git a/test/DebugInfo/ARM/PR16736.ll b/test/DebugInfo/ARM/PR16736.ll
new file mode 100644
index 0000000..87619f9
--- /dev/null
+++ b/test/DebugInfo/ARM/PR16736.ll
@@ -0,0 +1,63 @@
+; RUN: llc -filetype=asm < %s | FileCheck %s
+; CHECK: @DEBUG_VALUE: h:x <- [R{{.*}}+{{.*}}]
+; generated from:
+;
+; int f();
+; void g(float);
+; void h(int, int, int, int, float x) {
+;    g(x = f());
+; }
+;
+target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:64:128-a0:0:32-n32-S64"
+target triple = "thumbv7-apple-ios"
+
+; Function Attrs: nounwind
+define arm_aapcscc void @_Z1hiiiif(i32, i32, i32, i32, float %x) #0 {
+entry:
+  tail call void @llvm.dbg.value(metadata !{i32 %0}, i64 0, metadata !12), !dbg !18
+  tail call void @llvm.dbg.value(metadata !{i32 %1}, i64 0, metadata !13), !dbg !18
+  tail call void @llvm.dbg.value(metadata !{i32 %2}, i64 0, metadata !14), !dbg !18
+  tail call void @llvm.dbg.value(metadata !{i32 %3}, i64 0, metadata !15), !dbg !18
+  tail call void @llvm.dbg.value(metadata !{float %x}, i64 0, metadata !16), !dbg !18
+  %call = tail call arm_aapcscc i32 @_Z1fv() #3, !dbg !19
+  %conv = sitofp i32 %call to float, !dbg !19
+  tail call void @llvm.dbg.value(metadata !{float %conv}, i64 0, metadata !16), !dbg !19
+  tail call arm_aapcscc void @_Z1gf(float %conv) #3, !dbg !19
+  ret void, !dbg !20
+}
+
+declare arm_aapcscc void @_Z1gf(float)
+
+declare arm_aapcscc i32 @_Z1fv()
+
+; Function Attrs: nounwind readnone
+declare void @llvm.dbg.value(metadata, i64, metadata) #2
+
+attributes #0 = { nounwind  }
+attributes #2 = { nounwind readnone }
+attributes #3 = { nounwind }
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!17}
+
+!0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 (trunk 190804) (llvm/trunk 190797)", i1 true, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [//<unknown>] [DW_LANG_C_plus_plus]
+!1 = metadata !{metadata !"/<unknown>", metadata !""}
+!2 = metadata !{i32 0}
+!3 = metadata !{metadata !4}
+!4 = metadata !{i32 786478, metadata !5, metadata !6, metadata !"h", metadata !"h", metadata !"_Z1hiiiif", i32 3, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, void (i32, i32, i32, i32, float)* @_Z1hiiiif, null, null, metadata !11, i32 3} ; [ DW_TAG_subprogram ] [line 3] [def] [h]
+!5 = metadata !{metadata !"/arm.cpp", metadata !""}
+!6 = metadata !{i32 786473, metadata !5}          ; [ DW_TAG_file_type ] [//arm.cpp]
+!7 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !8, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!8 = metadata !{null, metadata !9, metadata !9, metadata !9, metadata !9, metadata !10}
+!9 = metadata !{i32 786468, null, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
+!10 = metadata !{i32 786468, null, null, metadata !"float", i32 0, i64 32, i64 32, i64 0, i32 0, i32 4} ; [ DW_TAG_base_type ] [float] [line 0, size 32, align 32, offset 0, enc DW_ATE_float]
+!11 = metadata !{metadata !12, metadata !13, metadata !14, metadata !15, metadata !16}
+!12 = metadata !{i32 786689, metadata !4, metadata !"", metadata !6, i32 16777219, metadata !9, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [line 3]
+!13 = metadata !{i32 786689, metadata !4, metadata !"", metadata !6, i32 33554435, metadata !9, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [line 3]
+!14 = metadata !{i32 786689, metadata !4, metadata !"", metadata !6, i32 50331651, metadata !9, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [line 3]
+!15 = metadata !{i32 786689, metadata !4, metadata !"", metadata !6, i32 67108867, metadata !9, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [line 3]
+!16 = metadata !{i32 786689, metadata !4, metadata !"x", metadata !6, i32 83886083, metadata !10, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [x] [line 3]
+!17 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
+!18 = metadata !{i32 3, i32 0, metadata !4, null}
+!19 = metadata !{i32 4, i32 0, metadata !4, null}
+!20 = metadata !{i32 5, i32 0, metadata !4, null}