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Add fused multiple+add instructions from VFPv4.

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Patch by Ana Pazos!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148658 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov
2012-01-22 12:07:33 +00:00
parent 381e2bee65
commit 4b4e62219b
9 changed files with 254 additions and 27 deletions
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68
test/CodeGen/ARM/fusedMAC.ll Normal file
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@@ -0,0 +1,68 @@
; RUN: llc < %s -march=arm -mattr=+neon-vfpv4 | FileCheck %s
; Check generated fused MAC and MLS.
define double @fusedMACTest1(double %d1, double %d2, double %d3) nounwind readnone noinline {
;CHECK: fusedMACTest1:
;CHECK: vfma.f64
%1 = fmul double %d1, %d2
%2 = fadd double %1, %d3
ret double %2
}
define float @fusedMACTest2(float %f1, float %f2, float %f3) nounwind readnone noinline {
;CHECK: fusedMACTest2:
;CHECK: vfma.f32
%1 = fmul float %f1, %f2
%2 = fadd float %1, %f3
ret float %2
}
define double @fusedMACTest3(double %d1, double %d2, double %d3) nounwind readnone noinline {
;CHECK: fusedMACTest3:
;CHECK: vfms.f64
%1 = fmul double %d2, %d3
%2 = fsub double %d1, %1
ret double %2
}
define float @fusedMACTest4(float %f1, float %f2, float %f3) nounwind readnone noinline {
;CHECK: fusedMACTest4:
;CHECK: vfms.f32
%1 = fmul float %f2, %f3
%2 = fsub float %f1, %1
ret float %2
}
define double @fusedMACTest5(double %d1, double %d2, double %d3) nounwind readnone noinline {
;CHECK: fusedMACTest5:
;CHECK: vfnma.f64
%1 = fmul double %d1, %d2
%2 = fsub double -0.0, %1
%3 = fsub double %2, %d3
ret double %3
}
define float @fusedMACTest6(float %f1, float %f2, float %f3) nounwind {
;CHECK: fusedMACTest6:
;CHECK: vfnma.f32
%1 = fmul float %f1, %f2
%2 = fsub float -0.0, %1
%3 = fsub float %2, %f3
ret float %3
}
define double @fusedMACTest7(double %d1, double %d2, double %d3) nounwind {
;CHECK: fusedMACTest7:
;CHECK: vfnms.f64
%1 = fmul double %d1, %d2
%2 = fsub double %1, %d3
ret double %2
}
define float @fusedMACTest8(float %f1, float %f2, float %f3) nounwind {
;CHECK: fusedMACTest8:
;CHECK: vfnms.f32
%1 = fmul float %f1, %f2
%2 = fsub float %1, %f3
ret float %2
}