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4b6f06420e
The machine scheduler (before register allocation) is enabled by default for SystemZ. The SelectionDAG scheduling preference now becomes source order scheduling (was regpressure). Review: Ulrich Weigand https://reviews.llvm.org/D37977 llvm-svn: 315063
21 lines
529 B
LLVM
21 lines
529 B
LLVM
; Test 128-bit floating-point subtraction.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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; There is no memory form of 128-bit subtraction.
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define void @f1(fp128 *%ptr, float %f2) {
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; CHECK-LABEL: f1:
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; CHECK-DAG: lxebr %f0, %f0
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; CHECK-DAG: ld %f1, 0(%r2)
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; CHECK-DAG: ld %f3, 8(%r2)
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; CHECK: sxbr %f1, %f0
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; CHECK: std %f1, 0(%r2)
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; CHECK: std %f3, 8(%r2)
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; CHECK: br %r14
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%f1 = load fp128 , fp128 *%ptr
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%f2x = fpext float %f2 to fp128
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%sum = fsub fp128 %f1, %f2x
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store fp128 %sum, fp128 *%ptr
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ret void
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}
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