Sigh, another instance where I incorrectly used XUINT instead of
UINTVAL.
I've also made the code here a little more robust (although I think
this case can't in fact be reached) if the 32-bit clear mask includes
bit 31. This case, if reached, would print out an out-of-range value
based on the size of the compiler's HOST_WIDE_INT type due to
sign-extension. We avoid this by masking the value after inversion.
gcc/ChangeLog:
PR target/106004
* config/arm/arm.cc (arm_print_operand, case 'V'): Use UINTVAL.
Clear bits in the mask above bit 31.
---
gcc/config/arm/arm.cc | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/gcc/config/arm/arm.cc b/gcc/config/arm/arm.cc
index 2925907b436..33fb98d5cad 100644
--- a/gcc/config/arm/arm.cc
+++ b/gcc/config/arm/arm.cc
@@ -24199,7 +24199,8 @@ arm_print_operand (FILE *stream, rtx x, int code)
return;
}
- unsigned HOST_WIDE_INT val = ~XUINT (x, 0);
+ unsigned HOST_WIDE_INT val
+ = ~UINTVAL (x) & HOST_WIDE_INT_UC (0xffffffff);
int lsb = exact_log2 (val & -val);
asm_fprintf (stream, "#%d, #%d", lsb,
(exact_log2 (val + (val & -val)) - lsb));
