[llvm-commits] [llvm] r127362 - in /llvm/trunk: lib/Transforms/Scalar/SimplifyLibCalls.cpp test/Transforms/SimplifyLibCalls/debug-line.ll

[Devang Patel]

Author: dpatel
Date: Wed Mar  9 15:27:52 2011
New Revision: 127362

URL: http://llvm.org/viewvc/llvm-project?rev=127362&view=rev
Log:
Preserve line number information while simplifying libcalls.

Added:
    llvm/trunk/test/Transforms/SimplifyLibCalls/debug-line.ll
Modified:
    llvm/trunk/lib/Transforms/Scalar/SimplifyLibCalls.cpp

Modified: llvm/trunk/lib/Transforms/Scalar/SimplifyLibCalls.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/SimplifyLibCalls.cpp?rev=127362&r1=127361&r2=127362&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/SimplifyLibCalls.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/SimplifyLibCalls.cpp Wed Mar  9 15:27:52 2011
@@ -1616,6 +1616,9 @@
       // Set the builder to the instruction after the call.
       Builder.SetInsertPoint(BB, I);
 
+      // Use debug location of CI for all new instructions.
+      Builder.SetCurrentDebugLocation(CI->getDebugLoc());
+
       // Try to optimize this call.
       Value *Result = LCO->OptimizeCall(CI, TD, TLI, Builder);
       if (Result == 0) continue;

Added: llvm/trunk/test/Transforms/SimplifyLibCalls/debug-line.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/SimplifyLibCalls/debug-line.ll?rev=127362&view=auto
==============================================================================
--- llvm/trunk/test/Transforms/SimplifyLibCalls/debug-line.ll (added)
+++ llvm/trunk/test/Transforms/SimplifyLibCalls/debug-line.ll Wed Mar  9 15:27:52 2011
@@ -0,0 +1,24 @@
+; RUN: opt -simplify-libcalls -S < %s | FileCheck %s
+
+
+ at .str = private constant [3 x i8] c"%c\00"
+
+define void @foo() nounwind ssp {
+;CHECK: call i32 @putchar{{.+}} !dbg
+  %1 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([3 x i8]* @.str, i32 0, i32 0), i32 97), !dbg !5
+  ret void, !dbg !7
+}
+
+declare i32 @printf(i8*, ...)
+
+!llvm.dbg.sp = !{!0}
+
+!0 = metadata !{i32 589870, i32 0, metadata !1, metadata !"foo", metadata !"foo", metadata !"", metadata !1, i32 4, metadata !3, i1 false, i1 true, i32 0, i32 0, null, i32 0, i1 false, void ()* @foo} ; [ DW_TAG_subprogram ]
+!1 = metadata !{i32 589865, metadata !"m.c", metadata !"/private/tmp", metadata !2} ; [ DW_TAG_file_type ]
+!2 = metadata !{i32 589841, i32 0, i32 12, metadata !"m.c", metadata !"/private/tmp", metadata !"clang", i1 true, i1 false, metadata !"", i32 0} ; [ DW_TAG_compile_unit ]
+!3 = metadata !{i32 589845, metadata !1, metadata !"", metadata !1, i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !4, i32 0, null} ; [ DW_TAG_subroutine_type ]
+!4 = metadata !{null}
+!5 = metadata !{i32 5, i32 2, metadata !6, null}
+!6 = metadata !{i32 589835, metadata !0, i32 4, i32 12, metadata !1, i32 0} ; [ DW_TAG_lexical_block ]
+!7 = metadata !{i32 6, i32 1, metadata !6, null}
+