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; RUN: llc -mtriple=x86_64-linux -mcpu=nehalem < %s | FileCheck %s --check-prefix=LIN
; RUN: llc -mtriple=x86_64-win32 -mcpu=nehalem < %s | FileCheck %s --check-prefix=WIN
; RUN: llc -mtriple=i686-win32 -mcpu=nehalem < %s | FileCheck %s --check-prefix=LIN32
; rdar://7398554
; When doing vector gather-scatter index calculation with 32-bit indices,
; use an efficient mov/shift sequence rather than shuffling each individual
; element out of the index vector.
; CHECK-LABEL: foo:
; LIN: movdqa (%rsi), %xmm0
; LIN: pand (%rdx), %xmm0
; LIN: pextrq $1, %xmm0, %r[[REG4:.+]]
; LIN: movd %xmm0, %r[[REG2:.+]]
; LIN: movslq %e[[REG2]], %r[[REG1:.+]]
; LIN: sarq $32, %r[[REG2]]
; LIN: movslq %e[[REG4]], %r[[REG3:.+]]
; LIN: sarq $32, %r[[REG4]]
; LIN: movsd (%rdi,%r[[REG1]],8), %xmm0
; LIN: movhpd (%rdi,%r[[REG2]],8), %xmm0
; LIN: movsd (%rdi,%r[[REG3]],8), %xmm1
; LIN: movhpd (%rdi,%r[[REG4]],8), %xmm1
; WIN: movdqa (%rdx), %xmm0
; WIN: pand (%r8), %xmm0
; WIN: pextrq $1, %xmm0, %r[[REG4:.+]]
; WIN: movd %xmm0, %r[[REG2:.+]]
; WIN: movslq %e[[REG2]], %r[[REG1:.+]]
; WIN: sarq $32, %r[[REG2]]
; WIN: movslq %e[[REG4]], %r[[REG3:.+]]
; WIN: sarq $32, %r[[REG4]]
; WIN: movsd (%rcx,%r[[REG1]],8), %xmm0
; WIN: movhpd (%rcx,%r[[REG2]],8), %xmm0
; WIN: movsd (%rcx,%r[[REG3]],8), %xmm1
; WIN: movhpd (%rcx,%r[[REG4]],8), %xmm1
define <4 x double> @foo(double* %p, <4 x i32>* %i, <4 x i32>* %h) nounwind {
%a = load <4 x i32>, <4 x i32>* %i
%b = load <4 x i32>, <4 x i32>* %h
%j = and <4 x i32> %a, %b
%d0 = extractelement <4 x i32> %j, i32 0
%d1 = extractelement <4 x i32> %j, i32 1
%d2 = extractelement <4 x i32> %j, i32 2
%d3 = extractelement <4 x i32> %j, i32 3
%q0 = getelementptr double, double* %p, i32 %d0
%q1 = getelementptr double, double* %p, i32 %d1
%q2 = getelementptr double, double* %p, i32 %d2
%q3 = getelementptr double, double* %p, i32 %d3
%r0 = load double, double* %q0
%r1 = load double, double* %q1
%r2 = load double, double* %q2
%r3 = load double, double* %q3
%v0 = insertelement <4 x double> undef, double %r0, i32 0
%v1 = insertelement <4 x double> %v0, double %r1, i32 1
%v2 = insertelement <4 x double> %v1, double %r2, i32 2
%v3 = insertelement <4 x double> %v2, double %r3, i32 3
ret <4 x double> %v3
}
; Check that the sequence previously used above, which bounces the vector off the
; cache works for x86-32. Note that in this case it will not be used for index
; calculation, since indexes are 32-bit, not 64.
; CHECK-LABEL: old:
; LIN32: movaps %xmm0, (%esp)
; LIN32-DAG: {{(mov|and)}}l (%esp),
; LIN32-DAG: {{(mov|and)}}l 4(%esp),
; LIN32-DAG: {{(mov|and)}}l 8(%esp),
; LIN32-DAG: {{(mov|and)}}l 12(%esp),
define <4 x i64> @old(double* %p, <4 x i32>* %i, <4 x i32>* %h, i64 %f) nounwind {
%a = load <4 x i32>, <4 x i32>* %i
%b = load <4 x i32>, <4 x i32>* %h
%j = and <4 x i32> %a, %b
%d0 = extractelement <4 x i32> %j, i32 0
%d1 = extractelement <4 x i32> %j, i32 1
%d2 = extractelement <4 x i32> %j, i32 2
%d3 = extractelement <4 x i32> %j, i32 3
%q0 = zext i32 %d0 to i64
%q1 = zext i32 %d1 to i64
%q2 = zext i32 %d2 to i64
%q3 = zext i32 %d3 to i64
%r0 = and i64 %q0, %f
%r1 = and i64 %q1, %f
%r2 = and i64 %q2, %f
%r3 = and i64 %q3, %f
%v0 = insertelement <4 x i64> undef, i64 %r0, i32 0
%v1 = insertelement <4 x i64> %v0, i64 %r1, i32 1
%v2 = insertelement <4 x i64> %v1, i64 %r2, i32 2
%v3 = insertelement <4 x i64> %v2, i64 %r3, i32 3
ret <4 x i64> %v3
}
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