[clang] [clang] Lower _BitInt(129+) to a different type in LLVM IR (PR #91364)

[Mariya Podchishchaeva via cfe-commits]

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@@ -194,7 +194,7 @@ double varargs_vec_3s(int fixed, ...) {
 // APCS-GNU: [[VAR:%.*]] = alloca <3 x i16>, align 8
 // APCS-GNU: [[AP:%.*]] = load ptr,
 // APCS-GNU: [[AP_NEXT:%.*]] = getelementptr inbounds i8, ptr [[AP]], i32 8
-// APCS-GNU: [[VEC:%.*]] = load <3 x i16>, ptr [[AP]], align 4
+// APCS-GNU: [[VEC:%.*]] = load <4 x i16>, ptr [[AP]], align 4
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Fznamznon wrote:

Switch to `EmitLoadOfScalar` in `VisitVAArgExpr` caused this.

https://github.com/llvm/llvm-project/pull/91364