Mercurial > hg > CbC > CbC_llvm
view test/Transforms/InstCombine/apint-mul1.ll @ 147:c2174574ed3a
LLVM 10
author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Wed, 14 Aug 2019 16:55:33 +0900 |
parents | 3a76565eade5 |
children |
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt < %s -instcombine -S | FileCheck %s ; This test makes sure that mul instructions are properly eliminated. ; This test is for Integer BitWidth < 64 && BitWidth % 2 != 0. define i17 @test1(i17 %X) { ; CHECK-LABEL: @test1( ; CHECK-NEXT: [[Y:%.*]] = shl i17 [[X:%.*]], 10 ; CHECK-NEXT: ret i17 [[Y]] ; %Y = mul i17 %X, 1024 ret i17 %Y } define <2 x i17> @test2(<2 x i17> %X) { ; CHECK-LABEL: @test2( ; CHECK-NEXT: [[Y:%.*]] = shl <2 x i17> [[X:%.*]], <i17 10, i17 10> ; CHECK-NEXT: ret <2 x i17> [[Y]] ; %Y = mul <2 x i17> %X, <i17 1024, i17 1024> ret <2 x i17> %Y } define <2 x i17> @test3(<2 x i17> %X) { ; CHECK-LABEL: @test3( ; CHECK-NEXT: [[Y:%.*]] = shl <2 x i17> [[X:%.*]], <i17 10, i17 8> ; CHECK-NEXT: ret <2 x i17> [[Y]] ; %Y = mul <2 x i17> %X, <i17 1024, i17 256> ret <2 x i17> %Y }