Mercurial > hg > Members > tobaru > cbc > CbC_llvm
view test/CodeGen/X86/rotate3.ll @ 33:e4204d083e25
LLVM 3.5
author | Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp> |
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date | Thu, 12 Dec 2013 14:32:10 +0900 |
parents | 95c75e76d11b |
children |
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; Check that (or (shl x, y), (srl x, (sub 32, y))) is folded into (rotl x, y) ; and (or (shl x, (sub 32, y)), (srl x, r)) into (rotr x, y) even if the ; argument is zero extended. Fix for PR16726. ; RUN: llc < %s -march=x86-64 -mcpu=corei7 | FileCheck %s define zeroext i8 @rolbyte(i32 %nBits_arg, i8 %x_arg) nounwind readnone { entry: %tmp1 = zext i8 %x_arg to i32 %tmp3 = shl i32 %tmp1, %nBits_arg %tmp8 = sub i32 8, %nBits_arg %tmp10 = lshr i32 %tmp1, %tmp8 %tmp11 = or i32 %tmp3, %tmp10 %tmp12 = trunc i32 %tmp11 to i8 ret i8 %tmp12 } ; CHECK: rolb %cl, %{{[a-z0-9]+}} define zeroext i8 @rorbyte(i32 %nBits_arg, i8 %x_arg) nounwind readnone { entry: %tmp1 = zext i8 %x_arg to i32 %tmp3 = lshr i32 %tmp1, %nBits_arg %tmp8 = sub i32 8, %nBits_arg %tmp10 = shl i32 %tmp1, %tmp8 %tmp11 = or i32 %tmp3, %tmp10 %tmp12 = trunc i32 %tmp11 to i8 ret i8 %tmp12 } ; CHECK: rorb %cl, %{{[a-z0-9]+}} define zeroext i16 @rolword(i32 %nBits_arg, i16 %x_arg) nounwind readnone { entry: %tmp1 = zext i16 %x_arg to i32 %tmp3 = shl i32 %tmp1, %nBits_arg %tmp8 = sub i32 16, %nBits_arg %tmp10 = lshr i32 %tmp1, %tmp8 %tmp11 = or i32 %tmp3, %tmp10 %tmp12 = trunc i32 %tmp11 to i16 ret i16 %tmp12 } ; CHECK: rolw %cl, %{{[a-z0-9]+}} define zeroext i16 @rorword(i32 %nBits_arg, i16 %x_arg) nounwind readnone { entry: %tmp1 = zext i16 %x_arg to i32 %tmp3 = lshr i32 %tmp1, %nBits_arg %tmp8 = sub i32 16, %nBits_arg %tmp10 = shl i32 %tmp1, %tmp8 %tmp11 = or i32 %tmp3, %tmp10 %tmp12 = trunc i32 %tmp11 to i16 ret i16 %tmp12 } ; CHECK: rorw %cl, %{{[a-z0-9]+}} define i64 @roldword(i64 %nBits_arg, i32 %x_arg) nounwind readnone { entry: %tmp1 = zext i32 %x_arg to i64 %tmp3 = shl i64 %tmp1, %nBits_arg %tmp8 = sub i64 32, %nBits_arg %tmp10 = lshr i64 %tmp1, %tmp8 %tmp11 = or i64 %tmp3, %tmp10 ret i64 %tmp11 } ; CHECK: roll %cl, %{{[a-z0-9]+}} define zeroext i64 @rordword(i64 %nBits_arg, i32 %x_arg) nounwind readnone { entry: %tmp1 = zext i32 %x_arg to i64 %tmp3 = lshr i64 %tmp1, %nBits_arg %tmp8 = sub i64 32, %nBits_arg %tmp10 = shl i64 %tmp1, %tmp8 %tmp11 = or i64 %tmp3, %tmp10 ret i64 %tmp11 } ; CHECK: rorl %cl, %{{[a-z0-9]+}}