18 lines
747 B
LLVM
18 lines
747 B
LLVM
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; RUN: opt < %s -instcombine -S | FileCheck %s
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
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define i16 @test1(i16 %a) {
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%tmp = zext i16 %a to i32 ; <i32> [#uses=2]
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%tmp21 = lshr i32 %tmp, 8 ; <i32> [#uses=1]
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; CHECK: %tmp21 = lshr i16 %a, 8
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%tmp5 = mul i32 %tmp, 5 ; <i32> [#uses=1]
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; CHECK: %tmp5 = mul i16 %a, 5
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%tmp.upgrd.32 = or i32 %tmp21, %tmp5 ; <i32> [#uses=1]
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; CHECK: %tmp.upgrd.32 = or i16 %tmp21, %tmp5
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%tmp.upgrd.3 = trunc i32 %tmp.upgrd.32 to i16 ; <i16> [#uses=1]
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ret i16 %tmp.upgrd.3
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; CHECK: ret i16 %tmp.upgrd.32
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}
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