[llvm] [X86] Fix ABI for passing after i128 (PR #124134)

[Nikita Popov via llvm-commits]

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@@ -1555,30 +1555,30 @@ define <4 x double> @fmuladd_contract_v4f64(<4 x double> %a, <4 x double> %b, <4
 ; SOFT-FLOAT-64-NEXT:    .cfi_offset %r14, -32
 ; SOFT-FLOAT-64-NEXT:    .cfi_offset %r15, -24
 ; SOFT-FLOAT-64-NEXT:    .cfi_offset %rbp, -16
+; SOFT-FLOAT-64-NEXT:    movq %r9, %rbp
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nikic wrote:

Because functionArgumentNeedsConsecutiveRegisters only returns true for i128, so <4 x double> gets the default behavior.

https://github.com/llvm/llvm-project/pull/124134