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5b2a5043f2
I'm not sure if we actually want to transform all of these in InstCombine yet, so I'm not labeling these with FIXME. llvm-svn: 281386
44 lines
1.0 KiB
LLVM
44 lines
1.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instcombine -S | FileCheck %s
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define i64 @rem_unsigned(i64 %x1, i64 %y2) {
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; CHECK-LABEL: @rem_unsigned(
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; CHECK-NEXT: [[R:%.*]] = urem i64 %x1, %y2
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; CHECK-NEXT: ret i64 [[R]]
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;
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%r = udiv i64 %x1, %y2
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%r7 = mul i64 %r, %y2
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%r8 = sub i64 %x1, %r7
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ret i64 %r8
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}
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; PR28672 - https://llvm.org/bugs/show_bug.cgi?id=28672
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define i8 @big_divisor(i8 %x) {
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; CHECK-LABEL: @big_divisor(
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; CHECK-NEXT: [[REM:%.*]] = urem i8 %x, -127
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; CHECK-NEXT: ret i8 [[REM]]
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;
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%rem = urem i8 %x, 129
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ret i8 %rem
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}
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define i5 @biggest_divisor(i5 %x) {
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; CHECK-LABEL: @biggest_divisor(
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; CHECK-NEXT: [[REM:%.*]] = urem i5 %x, -1
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; CHECK-NEXT: ret i5 [[REM]]
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;
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%rem = urem i5 %x, -1
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ret i5 %rem
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}
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define <2 x i4> @big_divisor_vec(<2 x i4> %x) {
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; CHECK-LABEL: @big_divisor_vec(
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; CHECK-NEXT: [[REM:%.*]] = urem <2 x i4> %x, <i4 -3, i4 -3>
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; CHECK-NEXT: ret <2 x i4> [[REM]]
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;
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%rem = urem <2 x i4> %x, <i4 13, i4 13>
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ret <2 x i4> %rem
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}
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