* [committed] analyzer: fix ICE introduced in r13-3168 [PR107210]
@ 2022-10-13 20:13 David Malcolm
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From: David Malcolm @ 2022-10-13 20:13 UTC (permalink / raw)
To: gcc-patches; +Cc: David Malcolm
Successfully bootstrapped & regrtested on x86_64-pc-linux-gnu.
Pushed to trunk as r13-3285-g99da523359e933.
gcc/analyzer/ChangeLog:
PR analyzer/107210
* svalue.cc (constant_svalue::maybe_fold_bits_within): Only
attempt to extract individual bits when tree_fits_uhwi_p.
gcc/testsuite/ChangeLog:
PR analyzer/107210
* gfortran.dg/analyzer/pr107210.f90: New test.
Signed-off-by: David Malcolm <dmalcolm@redhat.com>
---
gcc/analyzer/svalue.cc | 3 ++-
gcc/testsuite/gfortran.dg/analyzer/pr107210.f90 | 16 ++++++++++++++++
2 files changed, 18 insertions(+), 1 deletion(-)
create mode 100644 gcc/testsuite/gfortran.dg/analyzer/pr107210.f90
diff --git a/gcc/analyzer/svalue.cc b/gcc/analyzer/svalue.cc
index a0838c0f588..4b00a81b31d 100644
--- a/gcc/analyzer/svalue.cc
+++ b/gcc/analyzer/svalue.cc
@@ -884,7 +884,8 @@ constant_svalue::maybe_fold_bits_within (tree type,
if (bits.m_size_in_bits == 1
&& TREE_CODE (m_cst_expr) == INTEGER_CST
&& type
- && INTEGRAL_TYPE_P (type))
+ && INTEGRAL_TYPE_P (type)
+ && tree_fits_uhwi_p (m_cst_expr))
{
unsigned HOST_WIDE_INT bit = bits.m_start_bit_offset.to_uhwi ();
unsigned HOST_WIDE_INT mask = (1 << bit);
diff --git a/gcc/testsuite/gfortran.dg/analyzer/pr107210.f90 b/gcc/testsuite/gfortran.dg/analyzer/pr107210.f90
new file mode 100644
index 00000000000..6132db48817
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/analyzer/pr107210.f90
@@ -0,0 +1,16 @@
+! { dg-additional-options "-O1" }
+
+subroutine check_int (j)
+ INTEGER(4) :: i, ia(5), ib(5,4), ip, ipa(:)
+ target :: ib
+ POINTER :: ip, ipa
+ logical :: l(5)
+
+ ipa=>ib(2:3,1)
+
+ l = (/ sizeof(i) == 4, sizeof(ia) == 20, sizeof(ib) == 80, &
+ sizeof(ip) == 4, sizeof(ipa) == 8 /)
+
+ if (any(.not.l)) STOP 4
+
+end subroutine check_int
--
2.26.3
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