[clang] [Clang] Remove 3-element vector load and store special handling (PR #104661)
Eli Friedman via cfe-commits
cfe-commits at lists.llvm.org
Thu Aug 22 16:08:00 PDT 2024
================
@@ -45,7 +45,7 @@ void test3(packedfloat3 *p) {
*p = (packedfloat3) { 3.2f, 2.3f, 0.1f };
}
// CHECK: @test3(
-// CHECK: store <4 x float> {{.*}}, align 4
+// CHECK: store <3 x float> {{.*}}, align 4
----------------
efriedma-quic wrote:
Even if we can prove it doesn't trap, it's still not legal to store to the trailing bytes; they could contain other data. So we have to split the store.
https://github.com/llvm/llvm-project/pull/104661
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