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[X86] Align f128 to 16 bytes when passing on x86-32 #138092

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[X86] Align f128 to 16 bytes when passing on x86-32 #138092

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3 changes: 3 additions & 0 deletions llvm/lib/Target/X86/X86CallingConv.td
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Expand Up @@ -829,6 +829,9 @@ def CC_X86_32_Common : CallingConv<[
// Long doubles get slots whose size and alignment depends on the subtarget.
CCIfType<[f80], CCAssignToStack<0, 0>>,

// f128 get 16-byte slots that are 16-byte aligned.
CCIfType<[f128], CCAssignToStack<16, 16>>,

// Boolean vectors of AVX-512 are passed in SIMD registers.
// The call from AVX to AVX-512 function should work,
// since the boolean types in AVX/AVX2 are promoted by default.
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