mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-26 04:32:44 +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.
23 lines
556 B
LLVM
23 lines
556 B
LLVM
; Test vector negation on z14.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z14 | FileCheck %s
|
|
|
|
; Test a v4f32 negation.
|
|
define <4 x float> @f1(<4 x float> %dummy, <4 x float> %val) {
|
|
; CHECK-LABEL: f1:
|
|
; CHECK: vflcsb %v24, %v26
|
|
; CHECK: br %r14
|
|
%ret = fneg <4 x float> %val
|
|
ret <4 x float> %ret
|
|
}
|
|
|
|
; Test an f32 negation that uses vector registers.
|
|
define float @f2(<4 x float> %val) {
|
|
; CHECK-LABEL: f2:
|
|
; CHECK: wflcsb %f0, %v24
|
|
; CHECK: br %r14
|
|
%scalar = extractelement <4 x float> %val, i32 0
|
|
%ret = fneg float %scalar
|
|
ret float %ret
|
|
}
|