2090e85fee
This adds the ExpandLargeDivRem to the default pass pipeline. The limit at which it expands div/rem instructions is configured via a new TargetTransformInfo hook (default: no expansion) X86, Arm and AArch64 backends implement this hook to expand div/rem instructions with more than 128 bits. Differential Revision: https://reviews.llvm.org/D130076
45 lines
908 B
LLVM
45 lines
908 B
LLVM
; RUN: llc -mtriple=arm-eabi < %s | FileCheck %s
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define i65 @udiv65(i65 %a, i65 %b) nounwind {
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; CHECK-LABEL: udiv65:
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; CHECK-NOT: call
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%res = udiv i65 %a, %b
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ret i65 %res
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}
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define i129 @udiv129(i129 %a, i129 %b) nounwind {
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; CHECK-LABEL: udiv129:
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; CHECK-NOT: call
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%res = udiv i129 %a, %b
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ret i129 %res
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}
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define i129 @urem129(i129 %a, i129 %b) nounwind {
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; CHECK-LABEL: urem129:
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; CHECK-NOT: call
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%res = urem i129 %a, %b
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ret i129 %res
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}
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define i129 @sdiv129(i129 %a, i129 %b) nounwind {
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; CHECK-LABEL: sdiv129:
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; CHECK-NOT: call
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%res = sdiv i129 %a, %b
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ret i129 %res
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}
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define i129 @srem129(i129 %a, i129 %b) nounwind {
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; CHECK-LABEL: srem129:
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; CHECK-NOT: call
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%res = srem i129 %a, %b
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ret i129 %res
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}
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; Some higher sizes
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define i257 @sdiv257(i257 %a, i257 %b) nounwind {
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; CHECK-LABEL: sdiv257:
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; CHECK-NOT: call
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%res = sdiv i257 %a, %b
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ret i257 %res
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}
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