* [PATCH] [x86] Fix ICE due to condition mismatch between expander and define_insn.
@ 2022-12-06 8:06 liuhongt
0 siblings, 0 replies; only message in thread
From: liuhongt @ 2022-12-06 8:06 UTC (permalink / raw)
To: gcc-patches; +Cc: crazylht, hjl.tools, ubizjak
ice.i:7:1: error: unrecognizable insn:
7 | }
| ^
(insn 7 6 8 2 (set (reg:V2SF 84 [ vect__3.8 ])
(unspec:V2SF [
(reg:V2SF 86 [ vect__1.7 ])
(const_int 11 [0xb])
] UNSPEC_ROUND)) "ice.i":5:14 -1
(nil))
during RTL pass: vregs
Bootstrapped and regtested on x86_64-pc-linux-gnu{-m32,}.
I checked other round patterns are ok, just typo in this one.
Ready push to trunk as obvious patch.
gcc/ChangeLog:
PR target/107970
* config/i386/mmx.md (btruncv2sf2): Add TARGET_MMX_WITH_SSE to
the condition.
gcc/testsuite/ChangeLog:
* gcc.target/i386/pr107970.c: New test.
---
gcc/config/i386/mmx.md | 3 ++-
gcc/testsuite/gcc.target/i386/pr107970.c | 10 ++++++++++
2 files changed, 12 insertions(+), 1 deletion(-)
create mode 100644 gcc/testsuite/gcc.target/i386/pr107970.c
diff --git a/gcc/config/i386/mmx.md b/gcc/config/i386/mmx.md
index 63aff287795..c3afc6b5846 100644
--- a/gcc/config/i386/mmx.md
+++ b/gcc/config/i386/mmx.md
@@ -1709,7 +1709,8 @@ (define_expand "btruncv2sf2"
[(match_operand:V2SF 1 "register_operand")
(match_dup 2)]
UNSPEC_ROUND))]
- "TARGET_SSE4_1 && !flag_trapping_math"
+ "TARGET_SSE4_1 && !flag_trapping_math
+ && TARGET_MMX_WITH_SSE"
"operands[2] = GEN_INT (ROUND_TRUNC | ROUND_NO_EXC);")
(define_insn "*mmx_roundv2sf2"
diff --git a/gcc/testsuite/gcc.target/i386/pr107970.c b/gcc/testsuite/gcc.target/i386/pr107970.c
new file mode 100644
index 00000000000..1fbbb14ee72
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr107970.c
@@ -0,0 +1,10 @@
+/* { dg-do compile { target ia32 } } */
+/* { dg-options "-Ofast -m3dnow -msse4.1" } */
+
+float *foo_p;
+
+void
+foo(float *__restrict q) {
+ foo_p[0] = __builtin_truncf(q[0]);
+ foo_p[1] = __builtin_truncf(q[1]);
+}
--
2.27.0
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2022-12-06 8:06 [PATCH] [x86] Fix ICE due to condition mismatch between expander and define_insn liuhongt
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