Use the source-order scheduler instead of the "fast" scheduler at -O0,
because it's more likely to keep debug line information in its original
order.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108496 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 08ba548..6526134 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -132,7 +132,7 @@
     const TargetLowering &TLI = IS->getTargetLowering();
 
     if (OptLevel == CodeGenOpt::None)
-      return createFastDAGScheduler(IS, OptLevel);
+      return createSourceListDAGScheduler(IS, OptLevel);
     if (TLI.getSchedulingPreference() == Sched::Latency)
       return createTDListDAGScheduler(IS, OptLevel);
     if (TLI.getSchedulingPreference() == Sched::RegPressure)
diff --git a/test/CodeGen/X86/fast-isel-gep.ll b/test/CodeGen/X86/fast-isel-gep.ll
index 1270ab7..577dd72 100644
--- a/test/CodeGen/X86/fast-isel-gep.ll
+++ b/test/CodeGen/X86/fast-isel-gep.ll
@@ -9,7 +9,7 @@
        %t15 = load i32* %t9            ; <i32> [#uses=1]
        ret i32 %t15
 ; X32: test1:
-; X32:  	movl	(%ecx,%eax,4), %eax
+; X32:  	movl	(%eax,%ecx,4), %eax
 ; X32:  	ret
 
 ; X64: test1:
@@ -23,7 +23,7 @@
        %t15 = load i32* %t9            ; <i32> [#uses=1]
        ret i32 %t15
 ; X32: test2:
-; X32:  	movl	(%eax,%ecx,4), %eax
+; X32:  	movl	(%edx,%ecx,4), %eax
 ; X32:  	ret
 
 ; X64: test2:
diff --git a/test/CodeGen/X86/fast-isel-shift-imm.ll b/test/CodeGen/X86/fast-isel-shift-imm.ll
index 7759bb0..5c62c18 100644
--- a/test/CodeGen/X86/fast-isel-shift-imm.ll
+++ b/test/CodeGen/X86/fast-isel-shift-imm.ll
@@ -1,4 +1,4 @@
-; RUN: llc < %s -march=x86 -O0 | grep {sarl	\$80, %eax}
+; RUN: llc < %s -march=x86 -O0 | grep {sarl	\$80, %e}
 ; PR3242
 
 define void @foo(i32 %x, i32* %p) nounwind {