X86-FMA3: Implemented commute transformations FMA*_Int instructions.

It made it possible to apply the memory folding optimization for the 2nd
operand of FMA*_Int instructions.

Reviewer: Quentin Colombet
Differential Revision: http://reviews.llvm.org/D14550

llvm-svn: 252973

1 files changed, 255 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/X86/fma-commute-x86.ll b/llvm/test/CodeGen/X86/fma-commute-x86.ll
index 7b0f13e5b03..9e57b00bc0b 100644
--- a/llvm/test/CodeGen/X86/fma-commute-x86.ll
+++ b/llvm/test/CodeGen/X86/fma-commute-x86.ll
@@ -4,6 +4,38 @@
 
 attributes #0 = { nounwind }
 
+declare <4 x float> @llvm.x86.fma.vfmadd.ss(<4 x float>, <4 x float>, <4 x float>) nounwind readnone
+define <4 x float> @test_x86_fmadd_baa_ss(<4 x float> %a, <4 x float> %b) #0 {
+; CHECK-LABEL: test_x86_fmadd_baa_ss:
+; CHECK:       # BB#0:
+; CHECK-NEXT: vmovap{{s|d}} {{\(%rdx\), %xmm0|\(%rcx\), %xmm1}}
+; CHECK-NEXT: vmovap{{s|d}} {{\(%rdx\), %xmm0|\(%rcx\), %xmm1}}
+; CHECK-NEXT: vfmadd213ss %xmm1, %xmm1, %xmm0
+; CHECK-NEXT: retq
+  %res = call <4 x float> @llvm.x86.fma.vfmadd.ss(<4 x float> %b, <4 x float> %a, <4 x float> %a) nounwind
+  ret <4 x float> %res
+}
+
+define <4 x float> @test_x86_fmadd_aba_ss(<4 x float> %a, <4 x float> %b) #0 {
+; CHECK-LABEL: test_x86_fmadd_aba_ss:
+; CHECK:       # BB#0:
+; CHECK-NEXT: vmovaps	(%rcx), %xmm0
+; CHECK-NEXT: vfmadd132ss (%rdx), %xmm0, %xmm0
+; CHECK-NEXT: retq
+  %res = call <4 x float> @llvm.x86.fma.vfmadd.ss(<4 x float> %a, <4 x float> %b, <4 x float> %a) nounwind
+  ret <4 x float> %res
+}
+
+define <4 x float> @test_x86_fmadd_bba_ss(<4 x float> %a, <4 x float> %b) #0 {
+; CHECK-LABEL: test_x86_fmadd_bba_ss:
+; CHECK:       # BB#0:
+; CHECK-NEXT: vmovaps	(%rdx), %xmm0
+; CHECK-NEXT: vfmadd213ss (%rcx), %xmm0, %xmm0
+; CHECK-NEXT: retq
+  %res = call <4 x float> @llvm.x86.fma.vfmadd.ss(<4 x float> %b, <4 x float> %b, <4 x float> %a) nounwind
+  ret <4 x float> %res
+}
+
 declare <4 x float> @llvm.x86.fma.vfmadd.ps(<4 x float>, <4 x float>, <4 x float>) nounwind readnone
 define <4 x float> @test_x86_fmadd_baa_ps(<4 x float> %a, <4 x float> %b) #0 {
 ; CHECK-LABEL: test_x86_fmadd_baa_ps:
@@ -66,6 +98,38 @@ define <8 x float> @test_x86_fmadd_bba_ps_y(<8 x float> %a, <8 x float> %b) #0 {
   ret <8 x float> %res
 }
 
+declare <2 x double> @llvm.x86.fma.vfmadd.sd(<2 x double>, <2 x double>, <2 x double>) nounwind readnone
+define <2 x double> @test_x86_fmadd_baa_sd(<2 x double> %a, <2 x double> %b) #0 {
+; CHECK-LABEL: test_x86_fmadd_baa_sd:
+; CHECK:       # BB#0:
+; CHECK-NEXT: vmovap{{s|d}} {{\(%rdx\), %xmm0|\(%rcx\), %xmm1}}
+; CHECK-NEXT: vmovap{{s|d}} {{\(%rdx\), %xmm0|\(%rcx\), %xmm1}}
+; CHECK-NEXT: vfmadd213sd %xmm1, %xmm1, %xmm0
+; CHECK-NEXT: retq
+  %res = call <2 x double> @llvm.x86.fma.vfmadd.sd(<2 x double> %b, <2 x double> %a, <2 x double> %a) nounwind
+  ret <2 x double> %res
+}
+
+define <2 x double> @test_x86_fmadd_aba_sd(<2 x double> %a, <2 x double> %b) #0 {
+; CHECK-LABEL: test_x86_fmadd_aba_sd:
+; CHECK:       # BB#0:
+; CHECK-NEXT: vmovaps	(%rcx), %xmm0
+; CHECK-NEXT: vfmadd132sd (%rdx), %xmm0, %xmm0
+; CHECK-NEXT: retq
+  %res = call <2 x double> @llvm.x86.fma.vfmadd.sd(<2 x double> %a, <2 x double> %b, <2 x double> %a) nounwind
+  ret <2 x double> %res
+}
+
+define <2 x double> @test_x86_fmadd_bba_sd(<2 x double> %a, <2 x double> %b) #0 {
+; CHECK-LABEL: test_x86_fmadd_bba_sd:
+; CHECK:       # BB#0:
+; CHECK-NEXT: vmovaps	(%rdx), %xmm0
+; CHECK-NEXT: vfmadd213sd (%rcx), %xmm0, %xmm0
+; CHECK-NEXT: retq
+  %res = call <2 x double> @llvm.x86.fma.vfmadd.sd(<2 x double> %b, <2 x double> %b, <2 x double> %a) nounwind
+  ret <2 x double> %res
+}
+
 declare <2 x double> @llvm.x86.fma.vfmadd.pd(<2 x double>, <2 x double>, <2 x double>) nounwind readnone
 define <2 x double> @test_x86_fmadd_baa_pd(<2 x double> %a, <2 x double> %b) #0 {
 ; CHECK-LABEL: test_x86_fmadd_baa_pd:
@@ -129,6 +193,37 @@ define <4 x double> @test_x86_fmadd_bba_pd_y(<4 x double> %a, <4 x double> %b) #
 }
 
 
+declare <4 x float> @llvm.x86.fma.vfnmadd.ss(<4 x float>, <4 x float>, <4 x float>) nounwind readnone
+define <4 x float> @test_x86_fnmadd_baa_ss(<4 x float> %a, <4 x float> %b) #0 {
+; CHECK-LABEL: test_x86_fnmadd_baa_ss:
+; CHECK:       # BB#0:
+; CHECK-NEXT: vmovap{{s|d}} {{\(%rdx\), %xmm0|\(%rcx\), %xmm1}}
+; CHECK-NEXT: vmovap{{s|d}} {{\(%rdx\), %xmm0|\(%rcx\), %xmm1}}
+; CHECK-NEXT: vfnmadd213ss %xmm1, %xmm1, %xmm0
+; CHECK-NEXT: retq
+  %res = call <4 x float> @llvm.x86.fma.vfnmadd.ss(<4 x float> %b, <4 x float> %a, <4 x float> %a) nounwind
+  ret <4 x float> %res
+}
+
+define <4 x float> @test_x86_fnmadd_aba_ss(<4 x float> %a, <4 x float> %b) #0 {
+; CHECK-LABEL: test_x86_fnmadd_aba_ss:
+; CHECK:       # BB#0:
+; CHECK-NEXT: vmovaps	(%rcx), %xmm0
+; CHECK-NEXT: vfnmadd132ss (%rdx), %xmm0, %xmm0
+; CHECK-NEXT: retq
+  %res = call <4 x float> @llvm.x86.fma.vfnmadd.ss(<4 x float> %a, <4 x float> %b, <4 x float> %a) nounwind
+  ret <4 x float> %res
+}
+
+define <4 x float> @test_x86_fnmadd_bba_ss(<4 x float> %a, <4 x float> %b) #0 {
+; CHECK-LABEL: test_x86_fnmadd_bba_ss:
+; CHECK:       # BB#0:
+; CHECK-NEXT: vmovaps	(%rdx), %xmm0
+; CHECK-NEXT: vfnmadd213ss (%rcx), %xmm0, %xmm0
+; CHECK-NEXT: retq
+  %res = call <4 x float> @llvm.x86.fma.vfnmadd.ss(<4 x float> %b, <4 x float> %b, <4 x float> %a) nounwind
+  ret <4 x float> %res
+}
 
 declare <4 x float> @llvm.x86.fma.vfnmadd.ps(<4 x float>, <4 x float>, <4 x float>) nounwind readnone
 define <4 x float> @test_x86_fnmadd_baa_ps(<4 x float> %a, <4 x float> %b) #0 {
@@ -192,6 +287,38 @@ define <8 x float> @test_x86_fnmadd_bba_ps_y(<8 x float> %a, <8 x float> %b) #0
   ret <8 x float> %res
 }
 
+declare <2 x double> @llvm.x86.fma.vfnmadd.sd(<2 x double>, <2 x double>, <2 x double>) nounwind readnone
+define <2 x double> @test_x86_fnmadd_baa_sd(<2 x double> %a, <2 x double> %b) #0 {
+; CHECK-LABEL: test_x86_fnmadd_baa_sd:
+; CHECK:       # BB#0:
+; CHECK-NEXT: vmovap{{s|d}} {{\(%rdx\), %xmm0|\(%rcx\), %xmm1}}
+; CHECK-NEXT: vmovap{{s|d}} {{\(%rdx\), %xmm0|\(%rcx\), %xmm1}}
+; CHECK-NEXT: vfnmadd213sd %xmm1, %xmm1, %xmm0
+; CHECK-NEXT: retq
+  %res = call <2 x double> @llvm.x86.fma.vfnmadd.sd(<2 x double> %b, <2 x double> %a, <2 x double> %a) nounwind
+  ret <2 x double> %res
+}
+
+define <2 x double> @test_x86_fnmadd_aba_sd(<2 x double> %a, <2 x double> %b) #0 {
+; CHECK-LABEL: test_x86_fnmadd_aba_sd:
+; CHECK:       # BB#0:
+; CHECK-NEXT: vmovaps	(%rcx), %xmm0
+; CHECK-NEXT: vfnmadd132sd (%rdx), %xmm0, %xmm0
+; CHECK-NEXT: retq
+  %res = call <2 x double> @llvm.x86.fma.vfnmadd.sd(<2 x double> %a, <2 x double> %b, <2 x double> %a) nounwind
+  ret <2 x double> %res
+}
+
+define <2 x double> @test_x86_fnmadd_bba_sd(<2 x double> %a, <2 x double> %b) #0 {
+; CHECK-LABEL: test_x86_fnmadd_bba_sd:
+; CHECK:       # BB#0:
+; CHECK-NEXT: vmovaps	(%rdx), %xmm0
+; CHECK-NEXT: vfnmadd213sd (%rcx), %xmm0, %xmm0
+; CHECK-NEXT: retq
+  %res = call <2 x double> @llvm.x86.fma.vfnmadd.sd(<2 x double> %b, <2 x double> %b, <2 x double> %a) nounwind
+  ret <2 x double> %res
+}
+
 declare <2 x double> @llvm.x86.fma.vfnmadd.pd(<2 x double>, <2 x double>, <2 x double>) nounwind readnone
 define <2 x double> @test_x86_fnmadd_baa_pd(<2 x double> %a, <2 x double> %b) #0 {
 ; CHECK-LABEL: test_x86_fnmadd_baa_pd:
@@ -255,6 +382,38 @@ define <4 x double> @test_x86_fnmadd_bba_pd_y(<4 x double> %a, <4 x double> %b)
 }
 
 
+declare <4 x float> @llvm.x86.fma.vfmsub.ss(<4 x float>, <4 x float>, <4 x float>) nounwind readnone
+define <4 x float> @test_x86_fmsub_baa_ss(<4 x float> %a, <4 x float> %b) #0 {
+; CHECK-LABEL: test_x86_fmsub_baa_ss:
+; CHECK:       # BB#0:
+; CHECK-NEXT: vmovap{{s|d}} {{\(%rdx\), %xmm0|\(%rcx\), %xmm1}}
+; CHECK-NEXT: vmovap{{s|d}} {{\(%rdx\), %xmm0|\(%rcx\), %xmm1}}
+; CHECK-NEXT: vfmsub213ss %xmm1, %xmm1, %xmm0
+; CHECK-NEXT: retq
+  %res = call <4 x float> @llvm.x86.fma.vfmsub.ss(<4 x float> %b, <4 x float> %a, <4 x float> %a) nounwind
+  ret <4 x float> %res
+}
+
+define <4 x float> @test_x86_fmsub_aba_ss(<4 x float> %a, <4 x float> %b) #0 {
+; CHECK-LABEL: test_x86_fmsub_aba_ss:
+; CHECK:       # BB#0:
+; CHECK-NEXT: vmovaps	(%rcx), %xmm0
+; CHECK-NEXT: vfmsub132ss (%rdx), %xmm0, %xmm0
+; CHECK-NEXT: retq
+  %res = call <4 x float> @llvm.x86.fma.vfmsub.ss(<4 x float> %a, <4 x float> %b, <4 x float> %a) nounwind
+  ret <4 x float> %res
+}
+
+define <4 x float> @test_x86_fmsub_bba_ss(<4 x float> %a, <4 x float> %b) #0 {
+; CHECK-LABEL: test_x86_fmsub_bba_ss:
+; CHECK:       # BB#0:
+; CHECK-NEXT: vmovaps	(%rdx), %xmm0
+; CHECK-NEXT: vfmsub213ss (%rcx), %xmm0, %xmm0
+; CHECK-NEXT: retq
+  %res = call <4 x float> @llvm.x86.fma.vfmsub.ss(<4 x float> %b, <4 x float> %b, <4 x float> %a) nounwind
+  ret <4 x float> %res
+}
+
 declare <4 x float> @llvm.x86.fma.vfmsub.ps(<4 x float>, <4 x float>, <4 x float>) nounwind readnone
 define <4 x float> @test_x86_fmsub_baa_ps(<4 x float> %a, <4 x float> %b) #0 {
 ; CHECK-LABEL: test_x86_fmsub_baa_ps:
@@ -317,6 +476,38 @@ define <8 x float> @test_x86_fmsub_bba_ps_y(<8 x float> %a, <8 x float> %b) #0 {
   ret <8 x float> %res
 }
 
+declare <2 x double> @llvm.x86.fma.vfmsub.sd(<2 x double>, <2 x double>, <2 x double>) nounwind readnone
+define <2 x double> @test_x86_fmsub_baa_sd(<2 x double> %a, <2 x double> %b) #0 {
+; CHECK-LABEL: test_x86_fmsub_baa_sd:
+; CHECK:       # BB#0:
+; CHECK-NEXT: vmovap{{s|d}} {{\(%rdx\), %xmm0|\(%rcx\), %xmm1}}
+; CHECK-NEXT: vmovap{{s|d}} {{\(%rdx\), %xmm0|\(%rcx\), %xmm1}}
+; CHECK-NEXT: vfmsub213sd %xmm1, %xmm1, %xmm0
+; CHECK-NEXT: retq
+  %res = call <2 x double> @llvm.x86.fma.vfmsub.sd(<2 x double> %b, <2 x double> %a, <2 x double> %a) nounwind
+  ret <2 x double> %res
+}
+
+define <2 x double> @test_x86_fmsub_aba_sd(<2 x double> %a, <2 x double> %b) #0 {
+; CHECK-LABEL: test_x86_fmsub_aba_sd:
+; CHECK:       # BB#0:
+; CHECK-NEXT: vmovaps	(%rcx), %xmm0
+; CHECK-NEXT: vfmsub132sd (%rdx), %xmm0, %xmm0
+; CHECK-NEXT: retq
+  %res = call <2 x double> @llvm.x86.fma.vfmsub.sd(<2 x double> %a, <2 x double> %b, <2 x double> %a) nounwind
+  ret <2 x double> %res
+}
+
+define <2 x double> @test_x86_fmsub_bba_sd(<2 x double> %a, <2 x double> %b) #0 {
+; CHECK-LABEL: test_x86_fmsub_bba_sd:
+; CHECK:       # BB#0:
+; CHECK-NEXT: vmovaps	(%rdx), %xmm0
+; CHECK-NEXT: vfmsub213sd (%rcx), %xmm0, %xmm0
+; CHECK-NEXT: retq
+  %res = call <2 x double> @llvm.x86.fma.vfmsub.sd(<2 x double> %b, <2 x double> %b, <2 x double> %a) nounwind
+  ret <2 x double> %res
+}
+
 declare <2 x double> @llvm.x86.fma.vfmsub.pd(<2 x double>, <2 x double>, <2 x double>) nounwind readnone
 define <2 x double> @test_x86_fmsub_baa_pd(<2 x double> %a, <2 x double> %b) #0 {
 ; CHECK-LABEL: test_x86_fmsub_baa_pd:
@@ -380,6 +571,38 @@ define <4 x double> @test_x86_fmsub_bba_pd_y(<4 x double> %a, <4 x double> %b) #
 }
 
 
+declare <4 x float> @llvm.x86.fma.vfnmsub.ss(<4 x float>, <4 x float>, <4 x float>) nounwind readnone
+define <4 x float> @test_x86_fnmsub_baa_ss(<4 x float> %a, <4 x float> %b) #0 {
+; CHECK-LABEL: test_x86_fnmsub_baa_ss:
+; CHECK:       # BB#0:
+; CHECK-NEXT: vmovap{{s|d}} {{\(%rdx\), %xmm0|\(%rcx\), %xmm1}}
+; CHECK-NEXT: vmovap{{s|d}} {{\(%rdx\), %xmm0|\(%rcx\), %xmm1}}
+; CHECK-NEXT: vfnmsub213ss %xmm1, %xmm1, %xmm0
+; CHECK-NEXT: retq
+  %res = call <4 x float> @llvm.x86.fma.vfnmsub.ss(<4 x float> %b, <4 x float> %a, <4 x float> %a) nounwind
+  ret <4 x float> %res
+}
+
+define <4 x float> @test_x86_fnmsub_aba_ss(<4 x float> %a, <4 x float> %b) #0 {
+; CHECK-LABEL: test_x86_fnmsub_aba_ss:
+; CHECK:       # BB#0:
+; CHECK-NEXT: vmovaps	(%rcx), %xmm0
+; CHECK-NEXT: vfnmsub132ss (%rdx), %xmm0, %xmm0
+; CHECK-NEXT: retq
+  %res = call <4 x float> @llvm.x86.fma.vfnmsub.ss(<4 x float> %a, <4 x float> %b, <4 x float> %a) nounwind
+  ret <4 x float> %res
+}
+
+define <4 x float> @test_x86_fnmsub_bba_ss(<4 x float> %a, <4 x float> %b) #0 {
+; CHECK-LABEL: test_x86_fnmsub_bba_ss:
+; CHECK:       # BB#0:
+; CHECK-NEXT: vmovaps	(%rdx), %xmm0
+; CHECK-NEXT: vfnmsub213ss (%rcx), %xmm0, %xmm0
+; CHECK-NEXT: retq
+  %res = call <4 x float> @llvm.x86.fma.vfnmsub.ss(<4 x float> %b, <4 x float> %b, <4 x float> %a) nounwind
+  ret <4 x float> %res
+}
+
 declare <4 x float> @llvm.x86.fma.vfnmsub.ps(<4 x float>, <4 x float>, <4 x float>) nounwind readnone
 define <4 x float> @test_x86_fnmsub_baa_ps(<4 x float> %a, <4 x float> %b) #0 {
 ; CHECK-LABEL: test_x86_fnmsub_baa_ps:
@@ -442,6 +665,38 @@ define <8 x float> @test_x86_fnmsub_bba_ps_y(<8 x float> %a, <8 x float> %b) #0
   ret <8 x float> %res
 }
 
+declare <2 x double> @llvm.x86.fma.vfnmsub.sd(<2 x double>, <2 x double>, <2 x double>) nounwind readnone
+define <2 x double> @test_x86_fnmsub_baa_sd(<2 x double> %a, <2 x double> %b) #0 {
+; CHECK-LABEL: test_x86_fnmsub_baa_sd:
+; CHECK:       # BB#0:
+; CHECK-NEXT: vmovap{{s|d}} {{\(%rdx\), %xmm0|\(%rcx\), %xmm1}}
+; CHECK-NEXT: vmovap{{s|d}} {{\(%rdx\), %xmm0|\(%rcx\), %xmm1}}
+; CHECK-NEXT: vfnmsub213sd %xmm1, %xmm1, %xmm0
+; CHECK-NEXT: retq
+  %res = call <2 x double> @llvm.x86.fma.vfnmsub.sd(<2 x double> %b, <2 x double> %a, <2 x double> %a) nounwind
+  ret <2 x double> %res
+}
+
+define <2 x double> @test_x86_fnmsub_aba_sd(<2 x double> %a, <2 x double> %b) #0 {
+; CHECK-LABEL: test_x86_fnmsub_aba_sd:
+; CHECK:       # BB#0:
+; CHECK-NEXT: vmovaps	(%rcx), %xmm0
+; CHECK-NEXT: vfnmsub132sd (%rdx), %xmm0, %xmm0
+; CHECK-NEXT: retq
+  %res = call <2 x double> @llvm.x86.fma.vfnmsub.sd(<2 x double> %a, <2 x double> %b, <2 x double> %a) nounwind
+  ret <2 x double> %res
+}
+
+define <2 x double> @test_x86_fnmsub_bba_sd(<2 x double> %a, <2 x double> %b) #0 {
+; CHECK-LABEL: test_x86_fnmsub_bba_sd:
+; CHECK:       # BB#0:
+; CHECK-NEXT: vmovaps	(%rdx), %xmm0
+; CHECK-NEXT: vfnmsub213sd (%rcx), %xmm0, %xmm0
+; CHECK-NEXT: retq
+  %res = call <2 x double> @llvm.x86.fma.vfnmsub.sd(<2 x double> %b, <2 x double> %b, <2 x double> %a) nounwind
+  ret <2 x double> %res
+}
+
 declare <2 x double> @llvm.x86.fma.vfnmsub.pd(<2 x double>, <2 x double>, <2 x double>) nounwind readnone
 define <2 x double> @test_x86_fnmsub_baa_pd(<2 x double> %a, <2 x double> %b) #0 {
 ; CHECK-LABEL: test_x86_fnmsub_baa_pd: