[PATCH] D105390: [X86] Lower insertions into upper half of an 256-bit vector as broadcast+blend (PR50971)

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri marked an inline comment as done.
lebedev.ri added inline comments.


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Comment at: llvm/test/CodeGen/X86/masked_gather.ll:1306
+; AVX1-NEXT:    vbroadcastss c+28(%rip), %ymm2
+; AVX1-NEXT:    vblendps {{.*#+}} ymm0 = ymm0[0,1,2,3],ymm2[4],ymm0[5,6,7]
 ; AVX1-NEXT:  .LBB4_42: # %else87
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RKSimon wrote:
> Just noticed this on D106280 - I don't suppose you know why we fail to merge these identical broadcasts?
I'm not sure i follow. this inserts `c+28(%rip)` into the 4'th 32-bit element of ymm0.
How/what would expect it to look like?


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  https://reviews.llvm.org/D105390/new/

https://reviews.llvm.org/D105390