forked from OSchip/llvm-project
28 lines
719 B
LLVM
28 lines
719 B
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -reassociate < %s | FileCheck %s
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; Check that if constants combine to an absorbing value then the expression is
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; evaluated as the absorbing value.
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define i8 @or_all_ones(i8 %x) {
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; CHECK-LABEL: @or_all_ones(
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; CHECK-NEXT: ret i8 -1
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;
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%tmp1 = or i8 %x, 127
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%tmp2 = or i8 %tmp1, 128
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ret i8 %tmp2
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}
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; TODO: fmul by 0.0 with nsz+nnan should have simplified to 0.0.
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define double @fmul_zero(double %x) {
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; CHECK-LABEL: @fmul_zero(
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; CHECK-NEXT: [[R:%.*]] = fmul fast double [[X:%.*]], 0.000000e+00
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; CHECK-NEXT: ret double [[R]]
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;
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%x4 = fmul fast double %x, 4.0
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%r = fmul fast double %x4, 0.0
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ret double %r
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}
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