Merge pull request swiftlang#81435 from kkebo/fix-memmove

compnerd · web-flow · commit 0dc9711292cb · 2025-05-12T11:04:54.000-07:00
[embedded] Fix `memmove` for testing
diff --git a/utils/embedded-test-support/libc.c b/utils/embedded-test-support/libc.c
@@ -81,7 +81,7 @@ int memcmp(const void *s1, const void *s2, size_t n) {
 
 __attribute__((used))
 void *memmove(void *dst, const void *src, size_t n) {
-  if ((uintptr_t)dst > (uintptr_t)src) {
+  if ((uintptr_t)dst < (uintptr_t)src) {
     for (int i = 0; i < n; i++) {
       ((char *)dst)[i] = ((char *)src)[i];
     }

Original file line number	Diff line number	Diff line change
`@@ -81,7 +81,7 @@ int memcmp(const void s1, const void s2, size_t n) {`
`81`	`81`
`82`	`82`	`__attribute__((used))`
`83`	`83`	`void memmove(void dst, const void *src, size_t n) {`
`84`		`- if ((uintptr_t)dst > (uintptr_t)src) {`
	`84`	`+ if ((uintptr_t)dst < (uintptr_t)src) {`
`85`	`85`	`for (int i = 0; i < n; i++) {`
`86`	`86`	`((char )dst)[i] = ((char )src)[i];`
`87`	`87`	`}`