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NFC, some additional tests added and some renaming for planned fma support changes 

llvm-svn: 334461
This commit is contained in:
Michael Berg 2018-06-12 00:52:43 +00:00
parent 957b738432
commit 95f3a430a8
1 changed files with 25 additions and 21 deletions
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46
llvm/test/CodeGen/AArch64/neon-fma-FMF.ll
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@ -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> %A, <2 x float> %B, <2 x float> %C) {
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 float> %A, <2 x float> %B, <2 x float> %C)
%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
}