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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.
59 lines
1.4 KiB
LLVM
59 lines
1.4 KiB
LLVM
; Test vector negation.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s
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; Test a v16i8 negation.
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define <16 x i8> @f1(<16 x i8> %dummy, <16 x i8> %val) {
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; CHECK-LABEL: f1:
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; CHECK: vlcb %v24, %v26
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; CHECK: br %r14
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%ret = sub <16 x i8> zeroinitializer, %val
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ret <16 x i8> %ret
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}
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; Test a v8i16 negation.
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define <8 x i16> @f2(<8 x i16> %dummy, <8 x i16> %val) {
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; CHECK-LABEL: f2:
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; CHECK: vlch %v24, %v26
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; CHECK: br %r14
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%ret = sub <8 x i16> zeroinitializer, %val
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ret <8 x i16> %ret
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}
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; Test a v4i32 negation.
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define <4 x i32> @f3(<4 x i32> %dummy, <4 x i32> %val) {
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; CHECK-LABEL: f3:
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; CHECK: vlcf %v24, %v26
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; CHECK: br %r14
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%ret = sub <4 x i32> zeroinitializer, %val
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ret <4 x i32> %ret
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}
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; Test a v2i64 negation.
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define <2 x i64> @f4(<2 x i64> %dummy, <2 x i64> %val) {
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; CHECK-LABEL: f4:
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; CHECK: vlcg %v24, %v26
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; CHECK: br %r14
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%ret = sub <2 x i64> zeroinitializer, %val
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ret <2 x i64> %ret
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}
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; Test a v2f64 negation.
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define <2 x double> @f5(<2 x double> %dummy, <2 x double> %val) {
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; CHECK-LABEL: f5:
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; CHECK: vflcdb %v24, %v26
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; CHECK: br %r14
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%ret = fneg <2 x double> %val
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ret <2 x double> %ret
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}
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; Test an f64 negation that uses vector registers.
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define double @f6(<2 x double> %val) {
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; CHECK-LABEL: f6:
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; CHECK: wflcdb %f0, %v24
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; CHECK: br %r14
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%scalar = extractelement <2 x double> %val, i32 0
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%ret = fneg double %scalar
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ret double %ret
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}
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