[llvm] [PowerPC] Add special handling for arguments that are smaller than pointer size. (PR #119003)

[Hubert Tong via llvm-commits]

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@@ -1185,69 +1185,69 @@ define i64 @test_ints_stack(i32 %i1, i32 %i2, i32 %i3, i32 %i4, i32 %i5, i32 %i6
 ; ASM32PWR4-LABEL: test_ints_stack:
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hubert-reinterpretcast wrote:

`i1 zeroext` is another case that seems to be missing.

https://github.com/llvm/llvm-project/pull/119003