cb4f0c5c07
We want to run the Machine Scheduler instead of the List Scheduler after RA. Checked with a performance run on a Power 9 machine with SPEC 2006 and while some benchmarks improved and others degraded the geomean was slightly improved with the Machine Scheduler. Differential Revision: https://reviews.llvm.org/D45265 llvm-svn: 336295
29 lines
697 B
LLVM
29 lines
697 B
LLVM
; RUN: llc -verify-machineinstrs < %s -mattr=-vsx -mtriple=powerpc-apple-darwin | FileCheck %s
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define double @fabs(double %f) {
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; CHECK-LABEL: fabs:
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; CHECK: ; %bb.0:
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; CHECK-NEXT: fabs f1, f1
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; CHECK-NEXT: blr
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;
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%t = tail call double @fabs( double %f ) readnone
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ret double %t
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}
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define float @bitcast_fabs(float %x) {
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; CHECK-LABEL: bitcast_fabs:
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; CHECK: ; %bb.0:
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; CHECK-NEXT: stfs f1, -8(r1)
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; CHECK: lwz r2, -8(r1)
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; CHECK-NEXT: clrlwi r2, r2, 1
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; CHECK-NEXT: stw r2, -4(r1)
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; CHECK-NEXT: lfs f1, -4(r1)
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; CHECK-NEXT: blr
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;
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%bc1 = bitcast float %x to i32
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%and = and i32 %bc1, 2147483647
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%bc2 = bitcast i32 %and to float
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ret float %bc2
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}
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