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feca19b0d4
mulhs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23183 91177308-0d34-0410-b5e6-96231b3b80d8
18 lines
765 B
LLVM
18 lines
765 B
LLVM
; All of these ands and shifts should be folded into rlwimi's
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; RUN: llvm-as < mulhs.ll | llc -march=ppc32 | not grep mulhwu &&
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; RUN: llvm-as < mulhs.ll | llc -march=ppc32 | not grep srawi &&
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; RUN: llvm-as < mulhs.ll | llc -march=ppc32 | not grep add &&
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; RUN: llvm-as < mulhs.ll | llc -march=ppc32 | grep mulhw | wc -l | grep 1
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implementation ; Functions:
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int %mulhs(int %a, int %b) {
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entry:
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%tmp.1 = cast int %a to ulong ; <ulong> [#uses=1]
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%tmp.3 = cast int %b to ulong ; <ulong> [#uses=1]
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%tmp.4 = mul ulong %tmp.3, %tmp.1 ; <ulong> [#uses=1]
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%tmp.6 = shr ulong %tmp.4, ubyte 32 ; <ulong> [#uses=1]
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%tmp.7 = cast ulong %tmp.6 to int ; <int> [#uses=1]
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ret int %tmp.7
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}
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