diff options
| -rw-r--r-- | lib/CodeGen/RegisterScavenging.cpp | 7 | ||||
| -rw-r--r-- | test/CodeGen/Thumb2/2009-11-11-ScavengerAssert.ll | 85 |
2 files changed, 87 insertions, 5 deletions
diff --git a/lib/CodeGen/RegisterScavenging.cpp b/lib/CodeGen/RegisterScavenging.cpp index cf90aba86b..94680ed299 100644 --- a/lib/CodeGen/RegisterScavenging.cpp +++ b/lib/CodeGen/RegisterScavenging.cpp @@ -100,11 +100,8 @@ void RegScavenger::enterBasicBlock(MachineBasicBlock *mbb) { CalleeSavedRegs.set(CSRegs[i]); } - // RS used within emit{Pro,Epi}logue() - if (mbb != MBB) { - MBB = mbb; - initRegState(); - } + MBB = mbb; + initRegState(); Tracking = false; } diff --git a/test/CodeGen/Thumb2/2009-11-11-ScavengerAssert.ll b/test/CodeGen/Thumb2/2009-11-11-ScavengerAssert.ll new file mode 100644 index 0000000000..16db037c18 --- /dev/null +++ b/test/CodeGen/Thumb2/2009-11-11-ScavengerAssert.ll @@ -0,0 +1,85 @@ +; RUN: llc < %s -mtriplethumbv7-apple-darwin10 + +%struct.OP = type { %struct.OP*, %struct.OP*, %struct.OP* ()*, i32, i16, i16, i8, i8 } +%struct.SV = type { i8*, i32, i32 } + +declare arm_apcscc void @Perl_mg_set(%struct.SV*) nounwind + +define arm_apcscc %struct.OP* @Perl_pp_complement() nounwind { +entry: + %0 = load %struct.SV** null, align 4 ; <%struct.SV*> [#uses=2] + br i1 undef, label %bb21, label %bb5 + +bb5: ; preds = %entry + br i1 undef, label %bb13, label %bb6 + +bb6: ; preds = %bb5 + br i1 undef, label %bb8, label %bb7 + +bb7: ; preds = %bb6 + %1 = getelementptr inbounds %struct.SV* %0, i32 0, i32 0 ; <i8**> [#uses=1] + %2 = load i8** %1, align 4 ; <i8*> [#uses=1] + %3 = getelementptr inbounds i8* %2, i32 12 ; <i8*> [#uses=1] + %4 = bitcast i8* %3 to i32* ; <i32*> [#uses=1] + %5 = load i32* %4, align 4 ; <i32> [#uses=1] + %storemerge5 = xor i32 %5, -1 ; <i32> [#uses=1] + call arm_apcscc void @Perl_sv_setiv(%struct.SV* undef, i32 %storemerge5) nounwind + %6 = getelementptr inbounds %struct.SV* undef, i32 0, i32 2 ; <i32*> [#uses=1] + %7 = load i32* %6, align 4 ; <i32> [#uses=1] + %8 = and i32 %7, 16384 ; <i32> [#uses=1] + %9 = icmp eq i32 %8, 0 ; <i1> [#uses=1] + br i1 %9, label %bb12, label %bb11 + +bb8: ; preds = %bb6 + unreachable + +bb11: ; preds = %bb7 + call arm_apcscc void @Perl_mg_set(%struct.SV* undef) nounwind + br label %bb12 + +bb12: ; preds = %bb11, %bb7 + store %struct.SV* undef, %struct.SV** null, align 4 + br label %bb44 + +bb13: ; preds = %bb5 + %10 = call arm_apcscc i32 @Perl_sv_2uv(%struct.SV* %0) nounwind ; <i32> [#uses=0] + br i1 undef, label %bb.i, label %bb1.i + +bb.i: ; preds = %bb13 + call arm_apcscc void @Perl_sv_setiv(%struct.SV* undef, i32 undef) nounwind + br label %Perl_sv_setuv.exit + +bb1.i: ; preds = %bb13 + br label %Perl_sv_setuv.exit + +Perl_sv_setuv.exit: ; preds = %bb1.i, %bb.i + %11 = getelementptr inbounds %struct.SV* undef, i32 0, i32 2 ; <i32*> [#uses=1] + %12 = load i32* %11, align 4 ; <i32> [#uses=1] + %13 = and i32 %12, 16384 ; <i32> [#uses=1] + %14 = icmp eq i32 %13, 0 ; <i1> [#uses=1] + br i1 %14, label %bb20, label %bb19 + +bb19: ; preds = %Perl_sv_setuv.exit + call arm_apcscc void @Perl_mg_set(%struct.SV* undef) nounwind + br label %bb20 + +bb20: ; preds = %bb19, %Perl_sv_setuv.exit + store %struct.SV* undef, %struct.SV** null, align 4 + br label %bb44 + +bb21: ; preds = %entry + br i1 undef, label %bb23, label %bb22 + +bb22: ; preds = %bb21 + unreachable + +bb23: ; preds = %bb21 + unreachable + +bb44: ; preds = %bb20, %bb12 + ret %struct.OP* undef +} + +declare arm_apcscc void @Perl_sv_setiv(%struct.SV*, i32) nounwind + +declare arm_apcscc i32 @Perl_sv_2uv(%struct.SV*) nounwind |