| Summary: | Zero shift in ARM NEON vshll_n_s8 intrinsic produces an error | ||
|---|---|---|---|
| Product: | gcc | Reporter: | RP <power> |
| Component: | target | Assignee: | Not yet assigned to anyone <unassigned> |
| Status: | NEW --- | ||
| Severity: | normal | CC: | michael.crusoe |
| Priority: | P3 | Keywords: | assemble-failure |
| Version: | unknown | ||
| Target Milestone: | --- | ||
| Host: | Target: | arm | |
| Build: | Known to work: | ||
| Known to fail: | 12.1.0, 4.5.4 | Last reconfirmed: | 2023-09-27 00:00:00 |
Confirmed. |
Using this test program: #include <stdint.h> #include <arm_neon.h> void test(int8_t *src, int16_t *dst) { int8x8_t nvalue1; int16x8_t nvalue2; nvalue1 = vld1_s8(src); nvalue2 = vshll_n_s8(nvalue1, 0); vst1q_s16(dst, nvalue2); } The compiler produces this error: test.s:26: Error: immediate value out of range -- `vshll.s8 q8,d16,#0' Tested on multiple gcc versions. According to official ARM documentation, zero shift is valid in vshll_n_s8 intrinsic. The same goes for other vshll_n_XXX intrinsics.