forked from OSchip/llvm-project
parent
820bc75b8b
commit
5e176da364
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; This test should not contain a sign extend
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; RUN: llvm-as < %s | llc -march=ppc32 | not grep extsh
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int %test(uint %mode.0.i.0) {
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%tmp.79 = cast uint %mode.0.i.0 to short ; <sbyte> [#uses=1]
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%tmp.80 = cast short %tmp.79 to int ; <int> [#uses=1]
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%tmp.81 = and int %tmp.80, 24 ; <int> [#uses=1]
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ret int %tmp.81
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}
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; Neither of these functions should contain algebraic right shifts
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; RUN: llvm-as < %s | llc -march=ppc32 | not grep srawi
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int %test1(uint %mode.0.i.0) {
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%tmp.79 = cast uint %mode.0.i.0 to int ; <sbyte> [#uses=1]
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%tmp.80 = shr int %tmp.79, ubyte 15 ; <int> [#uses=1]
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%tmp.81 = and int %tmp.80, 24 ; <int> [#uses=1]
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ret int %tmp.81
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}
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int %test2(uint %mode.0.i.0) {
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%tmp.79 = cast uint %mode.0.i.0 to int ; <sbyte> [#uses=1]
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%tmp.80 = shr int %tmp.79, ubyte 15 ; <int> [#uses=1]
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%tmp.81 = shr uint %mode.0.i.0, ubyte 16
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%tmp.82 = cast uint %tmp.81 to int
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%tmp.83 = and int %tmp.80, %tmp.82 ; <int> [#uses=1]
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ret int %tmp.83
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}
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; This should turn into a single extsh
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; RUN: llvm-as < %s | llc -march=ppc32 | grep extsh | wc -l | grep 1
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int %test(int %X) {
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%tmp.81 = shl int %X, ubyte 16 ; <int> [#uses=1]
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%tmp.82 = shr int %tmp.81, ubyte 16 ; <int> [#uses=1]
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ret int %tmp.82
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}
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