diff options
Diffstat (limited to 'test/CodeGen/X86/gather-addresses.ll')
| -rw-r--r-- | test/CodeGen/X86/gather-addresses.ll | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/test/CodeGen/X86/gather-addresses.ll b/test/CodeGen/X86/gather-addresses.ll new file mode 100644 index 0000000000..07198386b8 --- /dev/null +++ b/test/CodeGen/X86/gather-addresses.ll @@ -0,0 +1,39 @@ +; RUN: llc -march=x86-64 < %s | FileCheck %s + +; 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: pand (%rdx), %xmm0 +; CHECK: movaps %xmm0, -24(%rsp) +; CHECK: movslq -24(%rsp), %rax +; CHECK: movsd (%rdi,%rax,8), %xmm0 +; CHECK: movslq -20(%rsp), %rax +; CHECK: movhpd (%rdi,%rax,8), %xmm0 +; CHECK: movslq -16(%rsp), %rax +; CHECK: movsd (%rdi,%rax,8), %xmm1 +; CHECK: movslq -12(%rsp), %rax +; CHECK: movhpd (%rdi,%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 +} |