36 lines
1.0 KiB
LLVM
36 lines
1.0 KiB
LLVM
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; 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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; This test makes sure that mul instructions are properly eliminated.
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; This test is for Integer BitWidth >= 64 && BitWidth % 2 >= 1024.
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define i177 @test1(i177 %X) {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: [[Y:%.*]] = shl i177 [[X:%.*]], 155
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; CHECK-NEXT: ret i177 [[Y]]
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;
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%C = shl i177 1, 155
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%Y = mul i177 %X, %C
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ret i177 %Y
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}
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define <2 x i177> @test2(<2 x i177> %X) {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: [[Y:%.*]] = shl <2 x i177> [[X:%.*]], <i177 155, i177 155>
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; CHECK-NEXT: ret <2 x i177> [[Y]]
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;
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%C = shl <2 x i177> <i177 1, i177 1>, <i177 155, i177 155>
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%Y = mul <2 x i177> %X, %C
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ret <2 x i177> %Y
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}
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define <2 x i177> @test3(<2 x i177> %X) {
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; CHECK-LABEL: @test3(
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; CHECK-NEXT: [[Y:%.*]] = shl <2 x i177> [[X:%.*]], <i177 150, i177 155>
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; CHECK-NEXT: ret <2 x i177> [[Y]]
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;
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%C = shl <2 x i177> <i177 1, i177 1>, <i177 150, i177 155>
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%Y = mul <2 x i177> %X, %C
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ret <2 x i177> %Y
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}
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