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authorLulu Cheng <chenglulu@loongson.cn>2024-07-04 10:37:26 +0800
committerLulu Cheng <chenglulu@loongson.cn>2024-07-12 10:23:01 +0800
commitabeb6c8a62758faa0719e818e6e8a7db15a6793b (patch)
tree339d0d2da4a26bf20aabfb9cea705c57616b3631
parentd7318f4cf89c2a934fcd1f87d711081285fad242 (diff)
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LoongArch: TFmode is not allowed to be stored in the float register.
PR target/115752 gcc/ChangeLog: * config/loongarch/loongarch.cc (loongarch_hard_regno_mode_ok_uncached): Replace UNITS_PER_FPVALUE with UNITS_PER_HWFPVALUE. * config/loongarch/loongarch.h (UNITS_PER_FPVALUE): Delete. gcc/testsuite/ChangeLog: * gcc.target/loongarch/pr115752.c: New test.
-rw-r--r--gcc/config/loongarch/loongarch.cc2
-rw-r--r--gcc/config/loongarch/loongarch.h7
-rw-r--r--gcc/testsuite/gcc.target/loongarch/pr115752.c8
3 files changed, 9 insertions, 8 deletions
diff --git a/gcc/config/loongarch/loongarch.cc b/gcc/config/loongarch/loongarch.cc
index 27f3dbd..5d894a3 100644
--- a/gcc/config/loongarch/loongarch.cc
+++ b/gcc/config/loongarch/loongarch.cc
@@ -6763,7 +6763,7 @@ loongarch_hard_regno_mode_ok_uncached (unsigned int regno, machine_mode mode)
if (mclass == MODE_FLOAT
|| mclass == MODE_COMPLEX_FLOAT
|| mclass == MODE_VECTOR_FLOAT)
- return size <= UNITS_PER_FPVALUE;
+ return size <= UNITS_PER_HWFPVALUE;
/* Allow integer modes that fit into a single register. We need
to put integers into FPRs when using instructions like CVT
diff --git a/gcc/config/loongarch/loongarch.h b/gcc/config/loongarch/loongarch.h
index b9323ab..5efeae5 100644
--- a/gcc/config/loongarch/loongarch.h
+++ b/gcc/config/loongarch/loongarch.h
@@ -146,13 +146,6 @@ along with GCC; see the file COPYING3. If not see
#define UNITS_PER_HWFPVALUE \
(TARGET_SOFT_FLOAT ? 0 : UNITS_PER_FP_REG)
-/* The largest size of value that can be held in floating-point
- registers. */
-#define UNITS_PER_FPVALUE \
- (TARGET_SOFT_FLOAT ? 0 \
- : TARGET_SINGLE_FLOAT ? UNITS_PER_FP_REG \
- : LA_LONG_DOUBLE_TYPE_SIZE / BITS_PER_UNIT)
-
/* The number of bytes in a double. */
#define UNITS_PER_DOUBLE (TYPE_PRECISION (double_type_node) / BITS_PER_UNIT)
diff --git a/gcc/testsuite/gcc.target/loongarch/pr115752.c b/gcc/testsuite/gcc.target/loongarch/pr115752.c
new file mode 100644
index 0000000..df4bae5
--- /dev/null
+++ b/gcc/testsuite/gcc.target/loongarch/pr115752.c
@@ -0,0 +1,8 @@
+/* { dg-do compile } */
+
+long double
+test (long double xx)
+{
+ __asm ("" :: "f"(xx)); /* { dg-error "inconsistent operand constraints in an 'asm'" } */
+ return xx + 1;
+}