Commit 466b100e5fee808d77598e0f294654deec281150 introduced a bug in
s390_md_asm_adjust if vector extensions are not available. Fix the control
flow of this function to not adjust long double values.
gcc/ChangeLog:
* config/s390/s390.cc (s390_md_asm_adjust): Fix.
gcc/testsuite/ChangeLog:
* gcc.target/s390/pr112753.c: New test.
Bootstrapped and tested on s390x.
Signed-off-by: Juergen Christ <jchr...@linux.ibm.com>
---
gcc/config/s390/s390.cc | 4 ++++
gcc/testsuite/gcc.target/s390/pr112753.c | 8 ++++++++
2 files changed, 12 insertions(+)
create mode 100644 gcc/testsuite/gcc.target/s390/pr112753.c
diff --git a/gcc/config/s390/s390.cc b/gcc/config/s390/s390.cc
index 29b5dc979207..3a4d2d346f0c 100644
--- a/gcc/config/s390/s390.cc
+++ b/gcc/config/s390/s390.cc
@@ -17604,6 +17604,10 @@ s390_md_asm_adjust (vec<rtx> &outputs, vec<rtx>
&inputs,
outputs[i] = fprx2;
}
+ if (!TARGET_VXE)
+ /* Long doubles are stored in FPR pairs - nothing left to do. */
+ return after_md_seq;
+
for (unsigned i = 0; i < ninputs; i++)
{
if (GET_MODE (inputs[i]) != TFmode)
diff --git a/gcc/testsuite/gcc.target/s390/pr112753.c
b/gcc/testsuite/gcc.target/s390/pr112753.c
new file mode 100644
index 000000000000..7183b3f12bed
--- /dev/null
+++ b/gcc/testsuite/gcc.target/s390/pr112753.c
@@ -0,0 +1,8 @@
+/* This caused an ICE on s390x due to a bug in s390_md_asm_adjust when no
+ vector extension is available. */
+
+/* { dg-do compile } */
+/* { dg-options "-O2 -march=zEC12" } */
+
+long double ____strtold_l_internal___x;
+void ____strtold_l_internal() { __asm__("" : :
"fm"(____strtold_l_internal___x)); }
--
2.39.3
