[PATCH] D53173: [X86] Type legalize v2f32 stores by widening to v4f32, casting to v2f64, extracting f64 and storing.

[Craig Topper via Phabricator via llvm-commits]

craig.topper added inline comments.


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Comment at: test/CodeGen/X86/2012-01-18-vbitcast.ll:10
 ; CHECK-NEXT:    .seh_endprologue
+; CHECK-NEXT:    movsd {{.*#+}} xmm0 = mem[0],zero
+; CHECK-NEXT:    movsd %xmm0, (%rsp)
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Something odd happened here. Suspect something to do with how bitcasts from 2 x float to 2 x i32 are legalized. v2f32 is widened but v2i32 is promoted. Generic legalization probably went through the stack Can probably fix with a custom legalization of this bitcast.


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Comment at: test/CodeGen/X86/fold-load-vec.ll:17
 ; CHECK-NEXT:    movlps %xmm0, (%rsp)
-; CHECK-NEXT:    movlps %xmm0, (%rsi)
+; CHECK-NEXT:    movq (%rsp), %rax
+; CHECK-NEXT:    movq %rax, (%rsi)
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Need to investigate


https://reviews.llvm.org/D53173