bool isSplat() const { return isSplatMask(Mask, getValueType(0)); }
int getSplatIndex() const {
assert(isSplat() && "Cannot get splat index for non-splat!");
- return Mask[0];
+ EVT VT = getValueType(0);
+ for (unsigned i = 0, e = VT.getVectorNumElements(); i != e; ++i) {
+ if (Mask[i] != -1)
+ return Mask[i];
+ }
+ return -1;
}
static bool isSplatMask(const int *Mask, EVT VT);
-; RUN: llc < %s -march=x86 -mattr=sse41 -o %t
-; RUN: grep pshufb %t | count 1
-
+; RUN: llc < %s -march=x86-64 -mattr=sse41 | FileCheck %s
define <8 x i16> @shuf6(<8 x i16> %T0, <8 x i16> %T1) nounwind readnone {
+; CHECK: pshufb
+; CHECK-NOT: pshufb
+; CHECK: ret
entry:
- %tmp9 = shufflevector <8 x i16> %T0, <8 x i16> %T1, <8 x i32> < i32 3, i32 2, i32 0, i32 2, i32 1, i32 5, i32 6 , i32 undef >
- ret <8 x i16> %tmp9
+ %tmp9 = shufflevector <8 x i16> %T0, <8 x i16> %T1, <8 x i32> < i32 3, i32 2, i32 0, i32 2, i32 1, i32 5, i32 6 , i32 undef >
+ ret <8 x i16> %tmp9
}
+
+define <8 x i16> @shuf7(<8 x i16> %t0) {
+; CHECK: pshufd
+ %tmp10 = shufflevector <8 x i16> %t0, <8 x i16> undef, <8 x i32> < i32 undef, i32 2, i32 2, i32 2, i32 2, i32 2, i32 undef, i32 undef >
+ ret <8 x i16> %tmp10
+}
\ No newline at end of file