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| author | Senthil Kumar Selvaraj <senthil_kumar.selvaraj@atmel.com> | 2015-11-19 17:30:24 +0000 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2015-11-19 10:30:24 -0700 |
| commit | 1014b6f54b75b690b81dfac4b284961c2fb51646 (patch) | |
| tree | c46d7a664854f1eb101011a8c8f91af5e052887e /gcc/tree-vrp.c | |
| parent | 04a9bb6ec35a925ec15fcaafe16124748c3bfcc9 (diff) | |
| download | gcc-1014b6f54b75b690b81dfac4b284961c2fb51646.zip gcc-1014b6f54b75b690b81dfac4b284961c2fb51646.tar.gz gcc-1014b6f54b75b690b81dfac4b284961c2fb51646.tar.bz2 | |
[Patch, vrp] Allow VRP type conversion folding only for widenings upto word mode
* tree.h (desired_pro_or_demotion_p): New function.
* tree-vrp.c (simplify_cond_using_ranges): Call it.
* gcc.dg/tree-ssa/vrp98.c: New testcase.
* gcc.target/avr/uint8-single-reg.c: New testcase.
From-SVN: r230618
Diffstat (limited to 'gcc/tree-vrp.c')
| -rw-r--r-- | gcc/tree-vrp.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/tree-vrp.c b/gcc/tree-vrp.c index 736082b..f2c948c 100644 --- a/gcc/tree-vrp.c +++ b/gcc/tree-vrp.c @@ -9459,7 +9459,8 @@ simplify_cond_using_ranges (gcond *stmt) innerop = gimple_assign_rhs1 (def_stmt); if (TREE_CODE (innerop) == SSA_NAME - && !POINTER_TYPE_P (TREE_TYPE (innerop))) + && !POINTER_TYPE_P (TREE_TYPE (innerop)) + && desired_pro_or_demotion_p (TREE_TYPE (innerop), TREE_TYPE (op0))) { value_range *vr = get_value_range (innerop); |