Fix PR4789. Teach eliminateFrameIndex how to handle VLDRQ and VSTRQ which cannot fold any immediate offset.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80191 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/ARM/spill-q.ll b/test/CodeGen/ARM/spill-q.ll
new file mode 100644
index 0000000..8775e05
--- /dev/null
+++ b/test/CodeGen/ARM/spill-q.ll
@@ -0,0 +1,57 @@
+; RUN: llvm-as < %s | llc -mtriple=armv7-elf -mattr=+neon | FileCheck %s
+; PR4789
+
+%bar = type { float, float, float }
+%baz = type { i32, [16 x %bar], [16 x float], [16 x i32], i8 }
+%foo = type { <4 x float> }
+%quux = type { i32 (...)**, %baz*, i32 }
+%quuz = type { %quux, i32, %bar, [128 x i8], [16 x %foo], %foo, %foo, %foo }
+
+declare <4 x float> @llvm.arm.neon.vld1.v4f32(i8*) nounwind readonly
+
+define arm_apcscc void @aaa(%quuz* %this, i8* %block) {
+; CHECK: aaa:
+; CHECK: vstmia sp
+; CHECK: vldmia sp
+entry:
+ %0 = call <4 x float> @llvm.arm.neon.vld1.v4f32(i8* undef) nounwind ; <<4 x float>> [#uses=1]
+ store float 6.300000e+01, float* undef, align 4
+ %1 = call <4 x float> @llvm.arm.neon.vld1.v4f32(i8* undef) nounwind ; <<4 x float>> [#uses=1]
+ store float 0.000000e+00, float* undef, align 4
+ %2 = call <4 x float> @llvm.arm.neon.vld1.v4f32(i8* undef) nounwind ; <<4 x float>> [#uses=1]
+ %val173 = load <4 x float>* undef ; <<4 x float>> [#uses=1]
+ br label %bb4
+
+bb4: ; preds = %bb193, %entry
+ %besterror.0.2264 = phi <4 x float> [ undef, %entry ], [ %besterror.0.0, %bb193 ] ; <<4 x float>> [#uses=2]
+ %part0.0.0261 = phi <4 x float> [ zeroinitializer, %entry ], [ %23, %bb193 ] ; <<4 x float>> [#uses=2]
+ %3 = fmul <4 x float> zeroinitializer, %0 ; <<4 x float>> [#uses=2]
+ %4 = fadd <4 x float> %3, %part0.0.0261 ; <<4 x float>> [#uses=1]
+ %5 = shufflevector <4 x float> %3, <4 x float> undef, <2 x i32> <i32 2, i32 3> ; <<2 x float>> [#uses=1]
+ %6 = shufflevector <2 x float> %5, <2 x float> undef, <4 x i32> <i32 1, i32 1, i32 1, i32 1> ; <<4 x float>> [#uses=1]
+ %7 = fmul <4 x float> %1, undef ; <<4 x float>> [#uses=1]
+ %8 = fadd <4 x float> %7, <float 5.000000e-01, float 5.000000e-01, float 5.000000e-01, float 5.000000e-01> ; <<4 x float>> [#uses=1]
+ %9 = fptosi <4 x float> %8 to <4 x i32> ; <<4 x i32>> [#uses=1]
+ %10 = sitofp <4 x i32> %9 to <4 x float> ; <<4 x float>> [#uses=1]
+ %11 = fmul <4 x float> %10, %2 ; <<4 x float>> [#uses=1]
+ %12 = fmul <4 x float> undef, %6 ; <<4 x float>> [#uses=1]
+ %13 = fmul <4 x float> %11, %4 ; <<4 x float>> [#uses=1]
+ %14 = fsub <4 x float> %12, %13 ; <<4 x float>> [#uses=1]
+ %15 = fsub <4 x float> %14, undef ; <<4 x float>> [#uses=1]
+ %16 = fmul <4 x float> %15, <float 2.000000e+00, float 2.000000e+00, float 2.000000e+00, float 2.000000e+00> ; <<4 x float>> [#uses=1]
+ %17 = fadd <4 x float> %16, undef ; <<4 x float>> [#uses=1]
+ %18 = fmul <4 x float> %17, %val173 ; <<4 x float>> [#uses=1]
+ %19 = shufflevector <4 x float> %18, <4 x float> undef, <2 x i32> <i32 2, i32 3> ; <<2 x float>> [#uses=1]
+ %20 = shufflevector <2 x float> %19, <2 x float> undef, <4 x i32> zeroinitializer ; <<4 x float>> [#uses=1]
+ %21 = fadd <4 x float> zeroinitializer, %20 ; <<4 x float>> [#uses=2]
+ %22 = fcmp ogt <4 x float> %besterror.0.2264, %21 ; <<4 x i1>> [#uses=0]
+ br i1 undef, label %bb193, label %bb186
+
+bb186: ; preds = %bb4
+ br label %bb193
+
+bb193: ; preds = %bb186, %bb4
+ %besterror.0.0 = phi <4 x float> [ %21, %bb186 ], [ %besterror.0.2264, %bb4 ] ; <<4 x float>> [#uses=1]
+ %23 = fadd <4 x float> %part0.0.0261, zeroinitializer ; <<4 x float>> [#uses=1]
+ br label %bb4
+}