https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97760
--- Comment #1 from yangyang ---
Created attachment 49521
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49521&action=edit
testcase
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: yangyang305 at huawei dot com
Target Milestone: ---
Hi, gcc-trunk outputs wrong values when compiling the attached testcase with
-O3.
gcc -O0 test.c -w &&
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96342
--- Comment #5 from yangyang ---
Created attachment 49414
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49414&action=edit
part2-patch
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96342
--- Comment #4 from yangyang ---
Created attachment 49413
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49413&action=edit
part1-patch
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96342
--- Comment #3 from yangyang ---
Hi,
Sorry for the slow reply. After studying the specification of SVE "omp
declare simd" and GCC's current implementation of "omp declare simd", I have
developed a rough plan to support GCC to generating SVE f
-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: yangyang305 at huawei dot com
Target Milestone: ---
Created attachment 49129
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49129&action=edit
ICE testcase
Hi, gcc-9.3.0 ICEs when compiling the attached t
-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: yangyang305 at huawei dot com
Target Milestone: ---
Hi, gcc-trunk ICEs when compiling the following testcase with -O3:
void test(int a, int* i) {
for (; a < 5; ++a) {
int b = 0;
int c = 0;
for (; b !=
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96342
yangyang changed:
What|Removed |Added
CC||yangyang305 at huawei dot com
--- Comment #1
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96195
--- Comment #2 from yangyang ---
(In reply to Jakub Jelinek from comment #1)
> Note the testcase is invalid, the loop iterator really shouldn't be changed
> in the simd body (well, can change, but only if it has the same value at the
> end of loo
-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: yangyang305 at huawei dot com
Target Milestone: ---
Hi, gcc-trunk ICEs when compiling the following testcase with -ftree-vectorize
-march=armv8.2-a+sve -O1 -msve-vector-bits=128 -fopenmp-simd
testcase
---
int by
: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: yangyang305 at huawei dot com
Target Milestone: ---
For the following case,
double test(double* d1, double* d2, double* d3, int num, double* ip) {
double dmax[3];
for (int i = 0; i < num; i++) {
dma
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94574
--- Comment #2 from yangyang ---
(In reply to yangyang from comment #1)
> A simple fix for this issue has been prepared
https://gcc.gnu.org/pipermail/gcc-patches/2020-April/543760.html
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94574
--- Comment #1 from yangyang ---
A simple fix for this issue has been prepared
-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: yangyang305 at huawei dot com
Target Milestone: ---
Hi， gcc-10 ICEs when compiling the following testcase with -O2
-msve-vector-bits=256 -march=armv8.2-a+sve
test case: gcc/testsuite/gcc.target/aarch64/sve/acle/general
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