-; RUN: llc -march=x86-64 < %s | FileCheck %s
+; RUN: llc -mtriple=x86_64-unknown-unknown -march=x86-64 < %s | FileCheck %s
; CHECK-LABEL: fmul2_f32:
; CHECK: addss %xmm0, %xmm0
ret <4 x float> %z
}
+; We should be able to pre-multiply the two constant vectors.
+; CHECK: float 5.000000e+00
+; CHECK: float 1.200000e+01
+; CHECK: float 2.100000e+01
+; CHECK: float 3.200000e+01
+; CHECK-LABEL: fmul_v4f32_two_consts_no_splat:
+; CHECK: mulps
+; CHECK-NOT: mulps
+; CHECK-NEXT: ret
+define <4 x float> @fmul_v4f32_two_consts_no_splat(<4 x float> %x) #0 {
+ %y = fmul <4 x float> %x, <float 1.0, float 2.0, float 3.0, float 4.0>
+ %z = fmul <4 x float> %y, <float 5.0, float 6.0, float 7.0, float 8.0>
+ ret <4 x float> %z
+}
+
+; Same as above, but reverse operands to make sure non-canonical form is also handled.
+; CHECK: float 5.000000e+00
+; CHECK: float 1.200000e+01
+; CHECK: float 2.100000e+01
+; CHECK: float 3.200000e+01
+; CHECK-LABEL: fmul_v4f32_two_consts_no_splat_non_canonical:
+; CHECK: mulps
+; CHECK-NOT: mulps
+; CHECK-NEXT: ret
+define <4 x float> @fmul_v4f32_two_consts_no_splat_non_canonical(<4 x float> %x) #0 {
+ %y = fmul <4 x float> <float 1.0, float 2.0, float 3.0, float 4.0>, %x
+ %z = fmul <4 x float> <float 5.0, float 6.0, float 7.0, float 8.0>, %y
+ ret <4 x float> %z
+}
+
+; More than one use of a constant multiply should not inhibit the optimization.
+; Instead of a chain of 2 dependent mults, this test will have 2 independent mults.
+; CHECK: float 5.000000e+00
+; CHECK: float 1.200000e+01
+; CHECK: float 2.100000e+01
+; CHECK: float 3.200000e+01
+; CHECK-LABEL: fmul_v4f32_two_consts_no_splat_multiple_use:
+; CHECK: mulps
+; CHECK: mulps
+; CHECK: addps
+; CHECK: ret
+define <4 x float> @fmul_v4f32_two_consts_no_splat_multiple_use(<4 x float> %x) #0 {
+ %y = fmul <4 x float> %x, <float 1.0, float 2.0, float 3.0, float 4.0>
+ %z = fmul <4 x float> %y, <float 5.0, float 6.0, float 7.0, float 8.0>
+ %a = fadd <4 x float> %y, %z
+ ret <4 x float> %a
+}
+
; CHECK-LABEL: fmul_c2_c4_f32:
; CHECK-NOT: addss
; CHECK: mulss
ret float %mul
}
; CHECK-LABEL: fmul_fneg_fneg_v4f32:
-; CHECK: mulps %xmm1, %xmm0
+; CHECK: mulps {{%xmm1|\(%rdx\)}}, %xmm0
; CHECK-NEXT: retq
define <4 x float> @fmul_fneg_fneg_v4f32(<4 x float> %x, <4 x float> %y) {
%x.neg = fsub <4 x float> <float -0.0, float -0.0, float -0.0, float -0.0>, %x