llvm/test/CodeGen/X86/gather-addresses.ll

42 lines
1.6 KiB
LLVM

; RUN: llc -mtriple=x86_64-linux -mcpu=nehalem < %s | FileCheck %s
; RUN: llc -mtriple=x86_64-win32 -mcpu=nehalem < %s | FileCheck %s
; rdar://7398554
; When doing vector gather-scatter index calculation with 32-bit indices,
; bounce the vector off of cache rather than shuffling each individual
; element out of the index vector.
; CHECK: andps ([[H:%rdx|%r8]]), %xmm0
; CHECK: movaps %xmm0, {{(-24)?}}(%rsp)
; CHECK: movslq {{(-24)?}}(%rsp), %rax
; CHECK: movsd ([[P:%rdi|%rcx]],%rax,8), %xmm0
; CHECK: movslq {{-20|4}}(%rsp), %rax
; CHECK: movhpd ([[P]],%rax,8), %xmm0
; CHECK: movslq {{-16|8}}(%rsp), %rax
; CHECK: movsd ([[P]],%rax,8), %xmm1
; CHECK: movslq {{-12|12}}(%rsp), %rax
; CHECK: movhpd ([[P]],%rax,8), %xmm1
define <4 x double> @foo(double* %p, <4 x i32>* %i, <4 x i32>* %h) nounwind {
%a = load <4 x i32>* %i
%b = load <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* %p, i32 %d0
%q1 = getelementptr double* %p, i32 %d1
%q2 = getelementptr double* %p, i32 %d2
%q3 = getelementptr double* %p, i32 %d3
%r0 = load double* %q0
%r1 = load double* %q1
%r2 = load double* %q2
%r3 = load 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
}