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| author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
|---|---|---|
| committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
| commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
| tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.dg/tree-ssa/pr21171.c | |
| download | cbb-gcc-4.6.4-15d2061ac0796199866debe9ac87130894b0cdd3.tar.bz2 cbb-gcc-4.6.4-15d2061ac0796199866debe9ac87130894b0cdd3.tar.xz | |
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Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/pr21171.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/pr21171.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr21171.c b/gcc/testsuite/gcc.dg/tree-ssa/pr21171.c new file mode 100644 index 000000000..9f7278378 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/pr21171.c @@ -0,0 +1,29 @@ +/* PR 21171. Ivopts should not rewrite references to volatile memory. */ +/* { dg-do compile } */ +/* { dg-options "-O1 -fdump-tree-optimized" } */ + +typedef unsigned int u_int32_t; +typedef unsigned char u_int8_t; + +#define AIC_VECTORS 32 + +typedef volatile struct AT91RM9200_regs { + u_int32_t SVR[AIC_VECTORS]; +} AT91RM9200_regs_t; + +#define CPUReg ((AT91RM9200_regs_t*)0xFFF00000) + +extern const u_int32_t __IntTable[AIC_VECTORS]; + +int main() +{ + int c; + + for (c = 0; c < AIC_VECTORS; c++) + CPUReg->SVR[c] = __IntTable[c]; + + return 0; +} + +/* { dg-final { scan-tree-dump-times "SVR" 1 "optimized"} } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ |