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[Clang] Pass correct lane mask for match helpers #138693

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Merged
merged 1 commit into from
May 7, 2025
Merged

[Clang] Pass correct lane mask for match helpers #138693

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10 changes: 6 additions & 4 deletions clang/lib/Headers/gpuintrin.h
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Original file line number Diff line number Diff line change
Expand Up @@ -264,9 +264,10 @@ __gpu_match_any_u32_impl(uint64_t __lane_mask, uint32_t __x) {
uint64_t __match_mask = 0;

bool __done = 0;
while (__gpu_ballot(__lane_mask, !__done)) {
for (uint64_t __active_mask = __lane_mask; __active_mask;
__active_mask = __gpu_ballot(__lane_mask, !__done)) {
if (!__done) {
uint32_t __first = __gpu_read_first_lane_u32(__lane_mask, __x);
uint32_t __first = __gpu_read_first_lane_u32(__active_mask, __x);
if (__first == __x) {
__match_mask = __gpu_lane_mask();
__done = 1;
Expand All @@ -283,9 +284,10 @@ __gpu_match_any_u64_impl(uint64_t __lane_mask, uint64_t __x) {
uint64_t __match_mask = 0;

bool __done = 0;
while (__gpu_ballot(__lane_mask, !__done)) {
for (uint64_t __active_mask = __lane_mask; __active_mask;
__active_mask = __gpu_ballot(__lane_mask, !__done)) {
if (!__done) {
uint64_t __first = __gpu_read_first_lane_u64(__lane_mask, __x);
uint64_t __first = __gpu_read_first_lane_u64(__active_mask, __x);
if (__first == __x) {
__match_mask = __gpu_lane_mask();
__done = 1;
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