16 lines
441 B
LLVM
16 lines
441 B
LLVM
; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- -o %t
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; RUN: grep slwi %t
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; RUN: not grep addi %t
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; RUN: not grep rlwinm %t
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define i32 @test(i32 %A) {
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;; shift
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%B = mul i32 %A, 8 ; <i32> [#uses=1]
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;; dead, no demanded bits.
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%C = add i32 %B, 7 ; <i32> [#uses=1]
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;; dead once add is gone.
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%D = and i32 %C, -8 ; <i32> [#uses=1]
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ret i32 %D
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}
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