albertbolt1 wrote:
Hi @banach-space
followed the incubator
This is the IR generated with -fclangir
`define dso_local <2 x i64> @test_vshlq_n_s64(<2 x i64> noundef %0) #0 {
br label %2
2: ; preds = %1
%3 = bitcast <2 x i64> %0 to <16 x i8>
%4 = bitcast <16 x i8> %3 to <2 x i64>
%5 = shl <2 x i64> %4, splat (i64 3)
br label %6
6: ; preds = %2
ret <2 x i64> %5
}`
this is the IR generated without -fclangir
`define dso_local <2 x i64> @test_vshlq_n_s64(<2 x i64> noundef %a) #0 {
entry:
%0 = bitcast <2 x i64> %a to <16 x i8>
%1 = bitcast <16 x i8> %0 to <2 x i64>
%vshl_n = shl <2 x i64> %1, splat (i64 3)
ret <2 x i64> %vshl_n
}`
hence the slight difference in the test cases between neon-intrinsics.c and
intrinsics.c
https://github.com/llvm/llvm-project/pull/187516
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