Imported Upstream version 6.0.0.172

Former-commit-id: f3cc9b82f3e5bd8f0fd3ebc098f789556b44e9cd

external/llvm/test/CodeGen/AArch64/neon-fma-FMF.ll

@@ -0,0 +1,53 @@
+; 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:
+; 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
+}
+
+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
+; CHECK: fadd
+	%tmp1 = fmul contract <2 x float> %A, %B;
+	%tmp2 = fadd <2 x float> %C, %tmp1;
+	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;
+	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;
+	%tmp2 = fsub contract <2 x float> %C, %tmp1;
+	ret <2 x float> %tmp2
+}
+
+define <2 x float> @no_fma_sub_1(<2 x float> %A, <2 x float> %B, <2 x float> %C) {
+; CHECK-LABEL: no_fma_sub_1:
+; CHECK: fmul
+; CHECK: fsub
+	%tmp1 = fmul contract <2 x float> %A, %B;
+	%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
+}