derek.holloway
7502bf64a4
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33 lines
915 B
LLVM
33 lines
915 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=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 != 0.
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define i17 @test1(i17 %X) {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: [[Y:%.*]] = shl i17 [[X:%.*]], 10
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; CHECK-NEXT: ret i17 [[Y]]
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;
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%Y = mul i17 %X, 1024
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ret i17 %Y
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}
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define <2 x i17> @test2(<2 x i17> %X) {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: [[Y:%.*]] = shl <2 x i17> [[X:%.*]], splat (i17 10)
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; CHECK-NEXT: ret <2 x i17> [[Y]]
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;
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%Y = mul <2 x i17> %X, <i17 1024, i17 1024>
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ret <2 x i17> %Y
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}
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define <2 x i17> @test3(<2 x i17> %X) {
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; CHECK-LABEL: @test3(
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; CHECK-NEXT: [[Y:%.*]] = shl <2 x i17> [[X:%.*]], <i17 10, i17 8>
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; CHECK-NEXT: ret <2 x i17> [[Y]]
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;
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%Y = mul <2 x i17> %X, <i17 1024, i17 256>
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ret <2 x i17> %Y
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}
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