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Transforms/InstCombine/vec_insertelt.ll and fixes PR1286. We now compile the code from that bug into: _foo: movl 4(%esp), %eax movdqa (%eax), %xmm0 movl 8(%esp), %ecx psllw (%ecx), %xmm0 movdqa %xmm0, (%eax) ret instead of: _foo: subl $4, %esp movl %ebp, (%esp) movl %esp, %ebp movl 12(%ebp), %eax movdqa (%eax), %xmm0 #IMPLICIT_DEF %eax pinsrw $2, %eax, %xmm0 xorl %ecx, %ecx pinsrw $3, %ecx, %xmm0 pinsrw $4, %eax, %xmm0 pinsrw $5, %ecx, %xmm0 pinsrw $6, %eax, %xmm0 pinsrw $7, %ecx, %xmm0 movl 8(%ebp), %eax movdqa (%eax), %xmm1 psllw %xmm0, %xmm1 movdqa %xmm1, (%eax) movl %ebp, %esp popl %ebp ret woo :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35788 91177308-0d34-0410-b5e6-96231b3b80d8 |
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