I managed to get the last obvious fix wrong: mode is M1, GET_MODE (op)
is M2. Checking this in as obvious fix (to the obvious fix). Let's
hope it ends here. Tested on powerpc64-linux and powerpc64le-linux.
Segher
2016-12-02 Segher Boessenkool <seg...@kernel.crashing.org>
* simplify-rtx.c (simplify_truncation): M2 is not mode, it is
GET_MODE (op). Fix this.
---
gcc/simplify-rtx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c
index 7ed849f..165af23 100644
--- a/gcc/simplify-rtx.c
+++ b/gcc/simplify-rtx.c
@@ -752,7 +752,7 @@ simplify_truncation (machine_mode mode, rtx op,
changing len. */
if ((GET_CODE (op) == ZERO_EXTRACT || GET_CODE (op) == SIGN_EXTRACT)
&& REG_P (XEXP (op, 0))
- && GET_MODE (XEXP (op, 0)) == mode
+ && GET_MODE (XEXP (op, 0)) == GET_MODE (op)
&& CONST_INT_P (XEXP (op, 1))
&& CONST_INT_P (XEXP (op, 2)))
{
--
1.9.3
