From 607a0508ba5732716809b926a271a9152bdcec12 Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Wed, 9 Sep 2009 14:22:57 +0000 Subject: When widening a vector load, use the correct chain. This fixes PR4891. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81343 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/CodeGen/X86/widen_load-1.ll | 45 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 test/CodeGen/X86/widen_load-1.ll (limited to 'test/CodeGen/X86/widen_load-1.ll') diff --git a/test/CodeGen/X86/widen_load-1.ll b/test/CodeGen/X86/widen_load-1.ll new file mode 100644 index 0000000..2d34b31 --- /dev/null +++ b/test/CodeGen/X86/widen_load-1.ll @@ -0,0 +1,45 @@ +; RUN: llc %s -o - -march=x86-64 -mtriple=x86_64-unknown-linux-gnu -disable-mmx | FileCheck %s +; PR4891 + +; This load should be before the call, not after. + +; CHECK: movq compl+128(%rip), %xmm0 +; CHECK: movaps %xmm0, (%rsp) +; CHECK: call killcommon + +@compl = linkonce global [20 x i64] zeroinitializer, align 64 ; <[20 x i64]*> [#uses=1] + +declare void @killcommon(i32* noalias) + +define void @reset(<2 x float>* noalias %garbage1) { +"file complex.c, line 27, bb1": + %changed = alloca i32, align 4 ; [#uses=3] + br label %"file complex.c, line 27, bb13" + +"file complex.c, line 27, bb13": ; preds = %"file complex.c, line 27, bb1" + store i32 0, i32* %changed, align 4 + %r2 = getelementptr float* bitcast ([20 x i64]* @compl to float*), i64 32 ; [#uses=1] + %r3 = bitcast float* %r2 to <2 x float>* ; <<2 x float>*> [#uses=1] + %r4 = load <2 x float>* %r3, align 4 ; <<2 x float>> [#uses=1] + call void @killcommon(i32* %changed) + br label %"file complex.c, line 34, bb4" + +"file complex.c, line 34, bb4": ; preds = %"file complex.c, line 27, bb13" + %r5 = load i32* %changed, align 4 ; [#uses=1] + %r6 = icmp eq i32 %r5, 0 ; [#uses=1] + %r7 = zext i1 %r6 to i32 ; [#uses=1] + %r8 = icmp ne i32 %r7, 0 ; [#uses=1] + br i1 %r8, label %"file complex.c, line 34, bb7", label %"file complex.c, line 27, bb5" + +"file complex.c, line 27, bb5": ; preds = %"file complex.c, line 34, bb4" + br label %"file complex.c, line 35, bb6" + +"file complex.c, line 35, bb6": ; preds = %"file complex.c, line 27, bb5" + %r11 = ptrtoint <2 x float>* %garbage1 to i64 ; [#uses=1] + %r12 = inttoptr i64 %r11 to <2 x float>* ; <<2 x float>*> [#uses=1] + store <2 x float> %r4, <2 x float>* %r12, align 4 + br label %"file complex.c, line 34, bb7" + +"file complex.c, line 34, bb7": ; preds = %"file complex.c, line 35, bb6", %"file complex.c, line 34, bb4" + ret void +} -- cgit v1.1