[NFC][CodeGen] Add unary fneg tests to X86/fma4-fneg-combine.ll

llvm-svn: 362733

1 files changed, 105 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/X86/fma4-fneg-combine.ll b/llvm/test/CodeGen/X86/fma4-fneg-combine.ll
index 771162a2c99..e1e7ad08546 100644
--- a/llvm/test/CodeGen/X86/fma4-fneg-combine.ll
+++ b/llvm/test/CodeGen/X86/fma4-fneg-combine.ll
@@ -17,6 +17,18 @@ define <4 x float> @test1(<4 x float> %a, <4 x float> %b, <4 x float> %c) {
   ret <4 x float> %sub.i
 }
 
+; TODO this can be negated
+define <4 x float> @test1_unary_fneg(<4 x float> %a, <4 x float> %b, <4 x float> %c) {
+; CHECK-LABEL: test1_unary_fneg:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vfmaddss %xmm2, %xmm1, %xmm0, %xmm0
+; CHECK-NEXT:    vxorps {{.*}}(%rip), %xmm0, %xmm0
+; CHECK-NEXT:    retq
+  %res = tail call <4 x float> @llvm.x86.fma4.vfmadd.ss(<4 x float> %a, <4 x float> %b, <4 x float> %c)
+  %sub.i = fneg <4 x float> %res
+  ret <4 x float> %sub.i
+}
+
 define <4 x float> @test2(<4 x float> %a, <4 x float> %b, <4 x float> %c) {
 ; CHECK-LABEL: test2:
 ; CHECK:       # %bb.0:
@@ -27,6 +39,16 @@ define <4 x float> @test2(<4 x float> %a, <4 x float> %b, <4 x float> %c) {
   ret <4 x float> %res
 }
 
+define <4 x float> @test2_unary_fneg(<4 x float> %a, <4 x float> %b, <4 x float> %c) {
+; CHECK-LABEL: test2_unary_fneg:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vfmsubss %xmm2, %xmm1, %xmm0, %xmm0
+; CHECK-NEXT:    retq
+  %sub.i = fneg <4 x float> %c
+  %res = tail call <4 x float> @llvm.x86.fma4.vfmadd.ss(<4 x float> %a, <4 x float> %b, <4 x float> %sub.i)
+  ret <4 x float> %res
+}
+
 define <4 x float> @test3(<4 x float> %a, <4 x float> %b, <4 x float> %c) {
 ; CHECK-LABEL: test3:
 ; CHECK:       # %bb.0:
@@ -37,6 +59,16 @@ define <4 x float> @test3(<4 x float> %a, <4 x float> %b, <4 x float> %c) {
   ret <4 x float> %res
 }
 
+define <4 x float> @test3_unary_fneg(<4 x float> %a, <4 x float> %b, <4 x float> %c) {
+; CHECK-LABEL: test3_unary_fneg:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vfnmaddss %xmm2, %xmm1, %xmm0, %xmm0
+; CHECK-NEXT:    retq
+  %sub.i = fneg <4 x float> %b
+  %res = tail call <4 x float> @llvm.x86.fma4.vfmadd.ss(<4 x float> %a, <4 x float> %sub.i, <4 x float> %c)
+  ret <4 x float> %res
+}
+
 define <4 x float> @test4(<4 x float> %a, <4 x float> %b, <4 x float> %c) {
 ; CHECK-LABEL: test4:
 ; CHECK:       # %bb.0:
@@ -47,6 +79,16 @@ define <4 x float> @test4(<4 x float> %a, <4 x float> %b, <4 x float> %c) {
   ret <4 x float> %res
 }
 
+define <4 x float> @test4_unary_fneg(<4 x float> %a, <4 x float> %b, <4 x float> %c) {
+; CHECK-LABEL: test4_unary_fneg:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vfnmaddss %xmm2, %xmm1, %xmm0, %xmm0
+; CHECK-NEXT:    retq
+  %sub.i = fneg <4 x float> %a
+  %res = tail call <4 x float> @llvm.x86.fma4.vfmadd.ss(<4 x float> %sub.i, <4 x float> %b, <4 x float> %c)
+  ret <4 x float> %res
+}
+
 define <4 x float> @test5(<4 x float> %a, <4 x float> %b, <4 x float> %c) {
 ; CHECK-LABEL: test5:
 ; CHECK:       # %bb.0:
@@ -58,6 +100,17 @@ define <4 x float> @test5(<4 x float> %a, <4 x float> %b, <4 x float> %c) {
   ret <4 x float> %res
 }
 
+define <4 x float> @test5_unary_fneg(<4 x float> %a, <4 x float> %b, <4 x float> %c) {
+; CHECK-LABEL: test5_unary_fneg:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vfnmsubss %xmm2, %xmm1, %xmm0, %xmm0
+; CHECK-NEXT:    retq
+  %sub.i = fneg <4 x float> %a
+  %sub.i.2 = fneg <4 x float> %c
+  %res = tail call <4 x float> @llvm.x86.fma4.vfmadd.ss(<4 x float> %sub.i, <4 x float> %b, <4 x float> %sub.i.2)
+  ret <4 x float> %res
+}
+
 define <2 x double> @test6(<2 x double> %a, <2 x double> %b, <2 x double> %c) {
 ; CHECK-LABEL: test6:
 ; CHECK:       # %bb.0:
@@ -69,6 +122,17 @@ define <2 x double> @test6(<2 x double> %a, <2 x double> %b, <2 x double> %c) {
   ret <2 x double> %sub.i
 }
 
+define <2 x double> @test6_unary_fneg(<2 x double> %a, <2 x double> %b, <2 x double> %c) {
+; CHECK-LABEL: test6_unary_fneg:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vfmaddsd %xmm2, %xmm1, %xmm0, %xmm0
+; CHECK-NEXT:    vxorpd {{.*}}(%rip), %xmm0, %xmm0
+; CHECK-NEXT:    retq
+  %res = tail call <2 x double> @llvm.x86.fma4.vfmadd.sd(<2 x double> %a, <2 x double> %b, <2 x double> %c)
+  %sub.i = fneg <2 x double> %res
+  ret <2 x double> %sub.i
+}
+
 define <2 x double> @test7(<2 x double> %a, <2 x double> %b, <2 x double> %c) {
 ; CHECK-LABEL: test7:
 ; CHECK:       # %bb.0:
@@ -79,6 +143,16 @@ define <2 x double> @test7(<2 x double> %a, <2 x double> %b, <2 x double> %c) {
   ret <2 x double> %res
 }
 
+define <2 x double> @test7_unary_fneg(<2 x double> %a, <2 x double> %b, <2 x double> %c) {
+; CHECK-LABEL: test7_unary_fneg:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vfmsubsd %xmm2, %xmm1, %xmm0, %xmm0
+; CHECK-NEXT:    retq
+  %sub.i = fneg <2 x double> %c
+  %res = tail call <2 x double> @llvm.x86.fma4.vfmadd.sd(<2 x double> %a, <2 x double> %b, <2 x double> %sub.i)
+  ret <2 x double> %res
+}
+
 define <2 x double> @test8(<2 x double> %a, <2 x double> %b, <2 x double> %c) {
 ; CHECK-LABEL: test8:
 ; CHECK:       # %bb.0:
@@ -89,6 +163,16 @@ define <2 x double> @test8(<2 x double> %a, <2 x double> %b, <2 x double> %c) {
   ret <2 x double> %res
 }
 
+define <2 x double> @test8_unary_fneg(<2 x double> %a, <2 x double> %b, <2 x double> %c) {
+; CHECK-LABEL: test8_unary_fneg:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vfnmaddsd %xmm2, %xmm1, %xmm0, %xmm0
+; CHECK-NEXT:    retq
+  %sub.i = fneg <2 x double> %b
+  %res = tail call <2 x double> @llvm.x86.fma4.vfmadd.sd(<2 x double> %a, <2 x double> %sub.i, <2 x double> %c)
+  ret <2 x double> %res
+}
+
 define <2 x double> @test9(<2 x double> %a, <2 x double> %b, <2 x double> %c) {
 ; CHECK-LABEL: test9:
 ; CHECK:       # %bb.0:
@@ -99,6 +183,16 @@ define <2 x double> @test9(<2 x double> %a, <2 x double> %b, <2 x double> %c) {
   ret <2 x double> %res
 }
 
+define <2 x double> @test9_unary_fneg(<2 x double> %a, <2 x double> %b, <2 x double> %c) {
+; CHECK-LABEL: test9_unary_fneg:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vfnmaddsd %xmm2, %xmm1, %xmm0, %xmm0
+; CHECK-NEXT:    retq
+  %sub.i = fneg <2 x double> %a
+  %res = tail call <2 x double> @llvm.x86.fma4.vfmadd.sd(<2 x double> %sub.i, <2 x double> %b, <2 x double> %c)
+  ret <2 x double> %res
+}
+
 define <2 x double> @test10(<2 x double> %a, <2 x double> %b, <2 x double> %c) {
 ; CHECK-LABEL: test10:
 ; CHECK:       # %bb.0:
@@ -109,3 +203,14 @@ define <2 x double> @test10(<2 x double> %a, <2 x double> %b, <2 x double> %c) {
   %res = tail call <2 x double> @llvm.x86.fma4.vfmadd.sd(<2 x double> %sub.i, <2 x double> %b, <2 x double> %sub.i.2)
   ret <2 x double> %res
 }
+
+define <2 x double> @test10_unary_fneg(<2 x double> %a, <2 x double> %b, <2 x double> %c) {
+; CHECK-LABEL: test10_unary_fneg:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vfnmsubsd %xmm2, %xmm1, %xmm0, %xmm0
+; CHECK-NEXT:    retq
+  %sub.i = fneg <2 x double> %a
+  %sub.i.2 = fneg <2 x double> %c
+  %res = tail call <2 x double> @llvm.x86.fma4.vfmadd.sd(<2 x double> %sub.i, <2 x double> %b, <2 x double> %sub.i.2)
+  ret <2 x double> %res
+}