mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 18:54:02 +01:00
f3ab4849fb
Now that we have fneg, prefer using it over "fsub -0.0, ...". This helps in particular with strict FP tests, as fneg does not raise any exceptions.
61 lines
2.3 KiB
LLVM
61 lines
2.3 KiB
LLVM
; Test vector negative multiply-and-add on z14.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z14 | FileCheck %s
|
|
|
|
declare <2 x double> @llvm.fma.v2f64(<2 x double>, <2 x double>, <2 x double>)
|
|
declare <4 x float> @llvm.fma.v4f32(<4 x float>, <4 x float>, <4 x float>)
|
|
|
|
; Test a v2f64 negative multiply-and-add.
|
|
define <2 x double> @f1(<2 x double> %dummy, <2 x double> %val1,
|
|
<2 x double> %val2, <2 x double> %val3) {
|
|
; CHECK-LABEL: f1:
|
|
; CHECK: vfnmadb %v24, %v26, %v28, %v30
|
|
; CHECK: br %r14
|
|
%ret = call <2 x double> @llvm.fma.v2f64 (<2 x double> %val1,
|
|
<2 x double> %val2,
|
|
<2 x double> %val3)
|
|
%negret = fneg <2 x double> %ret
|
|
ret <2 x double> %negret
|
|
}
|
|
|
|
; Test a v2f64 negative multiply-and-subtract.
|
|
define <2 x double> @f2(<2 x double> %dummy, <2 x double> %val1,
|
|
<2 x double> %val2, <2 x double> %val3) {
|
|
; CHECK-LABEL: f2:
|
|
; CHECK: vfnmsdb %v24, %v26, %v28, %v30
|
|
; CHECK: br %r14
|
|
%negval3 = fneg <2 x double> %val3
|
|
%ret = call <2 x double> @llvm.fma.v2f64 (<2 x double> %val1,
|
|
<2 x double> %val2,
|
|
<2 x double> %negval3)
|
|
%negret = fneg <2 x double> %ret
|
|
ret <2 x double> %negret
|
|
}
|
|
|
|
; Test a v4f32 negative multiply-and-add.
|
|
define <4 x float> @f3(<4 x float> %dummy, <4 x float> %val1,
|
|
<4 x float> %val2, <4 x float> %val3) {
|
|
; CHECK-LABEL: f3:
|
|
; CHECK: vfnmasb %v24, %v26, %v28, %v30
|
|
; CHECK: br %r14
|
|
%ret = call <4 x float> @llvm.fma.v4f32 (<4 x float> %val1,
|
|
<4 x float> %val2,
|
|
<4 x float> %val3)
|
|
%negret = fneg <4 x float> %ret
|
|
ret <4 x float> %negret
|
|
}
|
|
|
|
; Test a v4f32 negative multiply-and-subtract.
|
|
define <4 x float> @f4(<4 x float> %dummy, <4 x float> %val1,
|
|
<4 x float> %val2, <4 x float> %val3) {
|
|
; CHECK-LABEL: f4:
|
|
; CHECK: vfnmssb %v24, %v26, %v28, %v30
|
|
; CHECK: br %r14
|
|
%negval3 = fneg <4 x float> %val3
|
|
%ret = call <4 x float> @llvm.fma.v4f32 (<4 x float> %val1,
|
|
<4 x float> %val2,
|
|
<4 x float> %negval3)
|
|
%negret = fneg <4 x float> %ret
|
|
ret <4 x float> %negret
|
|
}
|