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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.
64 lines
2.0 KiB
LLVM
64 lines
2.0 KiB
LLVM
; Test vector multiply-and-add.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s
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declare <2 x double> @llvm.fma.v2f64(<2 x double>, <2 x double>, <2 x double>)
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; Test a v16i8 multiply-and-add.
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define <16 x i8> @f1(<16 x i8> %dummy, <16 x i8> %val1, <16 x i8> %val2,
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<16 x i8> %val3) {
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; CHECK-LABEL: f1:
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; CHECK: vmalb %v24, %v26, %v28, %v30
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; CHECK: br %r14
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%mul = mul <16 x i8> %val1, %val2
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%ret = add <16 x i8> %mul, %val3
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ret <16 x i8> %ret
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}
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; Test a v8i16 multiply-and-add.
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define <8 x i16> @f2(<8 x i16> %dummy, <8 x i16> %val1, <8 x i16> %val2,
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<8 x i16> %val3) {
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; CHECK-LABEL: f2:
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; CHECK: vmalhw %v24, %v26, %v28, %v30
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; CHECK: br %r14
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%mul = mul <8 x i16> %val1, %val2
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%ret = add <8 x i16> %mul, %val3
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ret <8 x i16> %ret
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}
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; Test a v4i32 multiply-and-add.
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define <4 x i32> @f3(<4 x i32> %dummy, <4 x i32> %val1, <4 x i32> %val2,
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<4 x i32> %val3) {
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; CHECK-LABEL: f3:
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; CHECK: vmalf %v24, %v26, %v28, %v30
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; CHECK: br %r14
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%mul = mul <4 x i32> %val1, %val2
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%ret = add <4 x i32> %mul, %val3
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ret <4 x i32> %ret
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}
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; Test a v2f64 multiply-and-add.
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define <2 x double> @f4(<2 x double> %dummy, <2 x double> %val1,
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<2 x double> %val2, <2 x double> %val3) {
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; CHECK-LABEL: f4:
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; CHECK: vfmadb %v24, %v26, %v28, %v30
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; CHECK: br %r14
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%ret = call <2 x double> @llvm.fma.v2f64 (<2 x double> %val1,
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<2 x double> %val2,
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<2 x double> %val3)
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ret <2 x double> %ret
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}
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; Test a v2f64 multiply-and-subtract.
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define <2 x double> @f5(<2 x double> %dummy, <2 x double> %val1,
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<2 x double> %val2, <2 x double> %val3) {
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; CHECK-LABEL: f5:
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; CHECK: vfmsdb %v24, %v26, %v28, %v30
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; CHECK: br %r14
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%negval3 = fneg <2 x double> %val3
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%ret = call <2 x double> @llvm.fma.v2f64 (<2 x double> %val1,
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<2 x double> %val2,
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<2 x double> %negval3)
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ret <2 x double> %ret
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}
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