case 'r':
return RCPair(0U, &ARM::GPRRegClass);
case 'w':
+ if (VT == MVT::Other)
+ break;
if (VT == MVT::f32)
return RCPair(0U, &ARM::SPRRegClass);
if (VT.getSizeInBits() == 64)
return RCPair(0U, &ARM::QPRRegClass);
break;
case 'x':
+ if (VT == MVT::Other)
+ break;
if (VT == MVT::f32)
return RCPair(0U, &ARM::SPR_8RegClass);
if (VT.getSizeInBits() == 64)
--- /dev/null
+;RUN: not llc -mtriple=arm-linux-gnueabihf < %s 2>&1 | FileCheck %s
+
+; ModuleID = 'bug.c'
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:64:128-a0:0:64-n32-S64"
+target triple = "armv7--"
+
+%struct.uint8x8x4_t = type { [4 x <8 x i8>] }
+
+define void @foo() #0 {
+ %vsrc = alloca %struct.uint8x8x4_t, align 8
+ %ptr = alloca i8;
+ %1 = call i8* asm sideeffect "vld4.u8 ${0:h}, [$1], $2", "=*w,=r,r,1"(%struct.uint8x8x4_t* %vsrc, i32 0, i8* %ptr)
+ ret void
+}
+
+; CHECK: error: couldn't allocate output register for constraint 'w'