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31 lines
1.3 KiB
LLVM
31 lines
1.3 KiB
LLVM
; Tests to make sure elimination of casts is working correctly
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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 i17 @test1(i17 %a) {
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%tmp = zext i17 %a to i37 ; <i37> [#uses=2]
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%tmp21 = lshr i37 %tmp, 8 ; <i37> [#uses=1]
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; CHECK: %tmp21 = lshr i17 %a, 8
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%tmp5 = shl i37 %tmp, 8 ; <i37> [#uses=1]
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; CHECK: %tmp5 = shl i17 %a, 8
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%tmp.upgrd.32 = or i37 %tmp21, %tmp5 ; <i37> [#uses=1]
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; CHECK: %tmp.upgrd.32 = or i17 %tmp21, %tmp5
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%tmp.upgrd.3 = trunc i37 %tmp.upgrd.32 to i17 ; <i17> [#uses=1]
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ret i17 %tmp.upgrd.3
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; CHECK: ret i17 %tmp.upgrd.32
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}
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define i167 @test2(i167 %a) {
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%tmp = zext i167 %a to i577 ; <i577> [#uses=2]
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%tmp21 = lshr i577 %tmp, 9 ; <i577> [#uses=1]
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; CHECK: %tmp21 = lshr i167 %a, 9
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%tmp5 = shl i577 %tmp, 8 ; <i577> [#uses=1]
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; CHECK: %tmp5 = shl i167 %a, 8
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%tmp.upgrd.32 = or i577 %tmp21, %tmp5 ; <i577> [#uses=1]
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; CHECK: %tmp.upgrd.32 = or i167 %tmp21, %tmp5
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%tmp.upgrd.3 = trunc i577 %tmp.upgrd.32 to i167 ; <i167> [#uses=1]
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ret i167 %tmp.upgrd.3
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; CHECK: ret i167 %tmp.upgrd.32
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}
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