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| author | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-11-18 16:54:16 +0000 |
|---|---|---|
| committer | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-11-18 16:54:16 +0000 |
| commit | 572d92c423f86305bc0e22573e88428f8b8a7aff (patch) | |
| tree | 67f5942c399a0a5b7626c88dfa86d3940e8c9eaa | |
| parent | 4a9e926a1d442915e607c9cb9c113eced8eba8e9 (diff) | |
| download | gcc-572d92c423f86305bc0e22573e88428f8b8a7aff.tar.gz | |
* gcc.dg/tree-ssa/split-path-1.c: Fix the testcase
to avoid undefined behaviour.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@230555 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/split-path-1.c | 16 |
2 files changed, 14 insertions, 7 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 08f910427ac..50e410cc9ea 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2015-11-18 Ajit Agarwal <ajitkum@xilinx.com> + + * gcc.dg/tree-ssa/split-path-1.c: Fix the testcase + to avoid undefined behaviour. + 2015-11-18 Jakub Jelinek <jakub@redhat.com> PR tree-optimization/68157 diff --git a/gcc/testsuite/gcc.dg/tree-ssa/split-path-1.c b/gcc/testsuite/gcc.dg/tree-ssa/split-path-1.c index 12398924dba..5c96241aa0c 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/split-path-1.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/split-path-1.c @@ -3,16 +3,17 @@ #include <stdio.h> #include <stdlib.h> +#include <ctype.h> -#define RGBMAX 255 +#define RGBMAX 255 -int +unsigned char test() { int i, Pels; - unsigned char sum = 0; + int sum = 0; unsigned char xr, xg, xb; - unsigned char xc, xm, xy, xk; + unsigned char xc, xm, xy, xk = 0; unsigned char *ReadPtr, *EritePtr; ReadPtr = ( unsigned char *) malloc (sizeof (unsigned char) * 100); @@ -23,7 +24,7 @@ test() ReadPtr[i] = 100 - i; } - for (i = 0; i < 100; i++) + for (i = 0; i < 24; i++) { xr = *ReadPtr++; xg = *ReadPtr++; @@ -50,7 +51,8 @@ test() *EritePtr++ = xm; *EritePtr++ = xy; *EritePtr++ = xk; - sum += *EritePtr; + sum += *(--EritePtr); + } return sum; } @@ -58,7 +60,7 @@ test() int main() { - if (test() != 33) + if (test() != 196) abort(); return 0; |