[llvm] r334461 - NFC, some additional tests added and some renaming for planned fma support changes

[Michael Berg via llvm-commits]

Author: mcberg2017
Date: Mon Jun 11 17:52:43 2018
New Revision: 334461

URL: http://llvm.org/viewvc/llvm-project?rev=334461&view=rev
Log:
NFC, some additional tests added and some renaming for planned fma support changes

Modified:
    llvm/trunk/test/CodeGen/AArch64/neon-fma-FMF.ll

Modified: llvm/trunk/test/CodeGen/AArch64/neon-fma-FMF.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AArch64/neon-fma-FMF.ll?rev=334461&r1=334460&r2=334461&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/AArch64/neon-fma-FMF.ll (original)
+++ llvm/trunk/test/CodeGen/AArch64/neon-fma-FMF.ll Mon Jun 11 17:52:43 2018
@@ -1,13 +1,24 @@
 ; RUN: llc < %s -verify-machineinstrs -mtriple=aarch64-none-linux-gnu -mattr=+neon | FileCheck %s
 
-define <2 x float> @fma(<2 x float> %A, <2 x float> %B, <2 x float> %C) {
-; CHECK-LABEL: fma:
+define <2 x float> @fma_1(<2 x float> %A, <2 x float> %B, <2 x float> %C) {
+; CHECK-LABEL: fma_1:
 ; CHECK: fmla {{v[0-9]+}}.2s, {{v[0-9]+}}.2s, {{v[0-9]+}}.2s
 	%tmp1 = fmul contract <2 x float> %A, %B;
 	%tmp2 = fadd contract <2 x float> %C, %tmp1;
 	ret <2 x float> %tmp2
 }
 
+; This case will fold as it was only available through unsafe before, now available from
+; the contract on the fadd
+define <2 x float> @fma_2(<2 x float> %A, <2 x float> %B, <2 x float> %C) {
+; CHECK-LABEL: fma_2:
+; CHECK: fmul {{v[0-9]+}}.2s, {{v[0-9]+}}.2s, {{v[0-9]+}}.2s
+; CHECK: fadd {{v[0-9]+}}.2s, {{v[0-9]+}}.2s, {{v[0-9]+}}.2s
+	%tmp1 = fmul <2 x float> %A, %B;
+	%tmp2 = fadd contract <2 x float> %C, %tmp1;
+	ret <2 x float> %tmp2
+}
+
 define <2 x float> @no_fma_1(<2 x float> %A, <2 x float> %B, <2 x float> %C) {
 ; CHECK-LABEL: no_fma_1:
 ; CHECK: fmul
@@ -17,19 +28,21 @@ define <2 x float> @no_fma_1(<2 x float>
 	ret <2 x float> %tmp2
 }
 
-define <2 x float> @no_fma_2(<2 x float> %A, <2 x float> %B, <2 x float> %C) {
-; CHECK-LABEL: no_fma_2:
-; CHECK: fmul
-; CHECK: fadd
-	%tmp1 = fmul <2 x float> %A, %B;
-	%tmp2 = fadd contract <2 x float> %C, %tmp1;
+define <2 x float> @fma_sub_1(<2 x float> %A, <2 x float> %B, <2 x float> %C) {
+; CHECK-LABEL: fma_sub_1:
+; CHECK: fmls {{v[0-9]+}}.2s, {{v[0-9]+}}.2s, {{v[0-9]+}}.2s
+	%tmp1 = fmul contract <2 x float> %A, %B;
+	%tmp2 = fsub contract <2 x float> %C, %tmp1;
 	ret <2 x float> %tmp2
 }
 
-define <2 x float> @fma_sub(<2 x float> %A, <2 x float> %B, <2 x float> %C) {
-; CHECK-LABEL: fma_sub:
-; CHECK: fmls {{v[0-9]+}}.2s, {{v[0-9]+}}.2s, {{v[0-9]+}}.2s
-	%tmp1 = fmul contract <2 x float> %A, %B;
+; This case will fold as it was only available through unsafe before, now available from
+; the contract on the fsub
+define <2 x float> @fma_sub_2(<2 x float> %A, <2 x float> %B, <2 x float> %C) {
+; CHECK-LABEL: fma_sub_2:
+; CHECK: fmul {{v[0-9]+}}.2s, {{v[0-9]+}}.2s, {{v[0-9]+}}.2s
+; CHECK: fsub {{v[0-9]+}}.2s, {{v[0-9]+}}.2s, {{v[0-9]+}}.2s
+	%tmp1 = fmul <2 x float> %A, %B;
 	%tmp2 = fsub contract <2 x float> %C, %tmp1;
 	ret <2 x float> %tmp2
 }
@@ -42,12 +55,3 @@ define <2 x float> @no_fma_sub_1(<2 x fl
 	%tmp2 = fsub <2 x float> %C, %tmp1;
 	ret <2 x float> %tmp2
 }
-
-define <2 x float> @no_fma_sub_2(<2 x float> %A, <2 x float> %B, <2 x float> %C) {
-; CHECK-LABEL: no_fma_sub_2:
-; CHECK: fmul
-; CHECK: fsub
-	%tmp1 = fmul <2 x float> %A, %B;
-	%tmp2 = fsub contract <2 x float> %C, %tmp1;
-	ret <2 x float> %tmp2
-}