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authorMichael Clark <mjc@sifive.com>2018-03-03 01:31:10 +1300
committerMichael Clark <mjc@sifive.com>2018-03-07 08:30:28 +1300
commitf798f1e29be6066feafa2a88aa94441695339e0a (patch)
tree2e4feef28a59143302f1eae0b5aed2c3e6993804 /fpu
parent0c3e702aca76ca6ebf2aac4451870efc9d52a7a3 (diff)
RISC-V FPU Support
Helper routines for FPU instructions and NaN definitions. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Sagar Karandikar <sagark@eecs.berkeley.edu> Signed-off-by: Michael Clark <mjc@sifive.com>
Diffstat (limited to 'fpu')
-rw-r--r--fpu/softfloat-specialize.h7
1 files changed, 4 insertions, 3 deletions
diff --git a/fpu/softfloat-specialize.h b/fpu/softfloat-specialize.h
index 9ccb59422c..27834af0de 100644
--- a/fpu/softfloat-specialize.h
+++ b/fpu/softfloat-specialize.h
@@ -114,7 +114,8 @@ float32 float32_default_nan(float_status *status)
#if defined(TARGET_SPARC) || defined(TARGET_M68K)
return const_float32(0x7FFFFFFF);
#elif defined(TARGET_PPC) || defined(TARGET_ARM) || defined(TARGET_ALPHA) || \
- defined(TARGET_XTENSA) || defined(TARGET_S390X) || defined(TARGET_TRICORE)
+ defined(TARGET_XTENSA) || defined(TARGET_S390X) || \
+ defined(TARGET_TRICORE) || defined(TARGET_RISCV)
return const_float32(0x7FC00000);
#elif defined(TARGET_HPPA)
return const_float32(0x7FA00000);
@@ -139,7 +140,7 @@ float64 float64_default_nan(float_status *status)
#if defined(TARGET_SPARC) || defined(TARGET_M68K)
return const_float64(LIT64(0x7FFFFFFFFFFFFFFF));
#elif defined(TARGET_PPC) || defined(TARGET_ARM) || defined(TARGET_ALPHA) || \
- defined(TARGET_S390X)
+ defined(TARGET_S390X) || defined(TARGET_RISCV)
return const_float64(LIT64(0x7FF8000000000000));
#elif defined(TARGET_HPPA)
return const_float64(LIT64(0x7FF4000000000000));
@@ -203,7 +204,7 @@ float128 float128_default_nan(float_status *status)
r.high = LIT64(0x7FFF7FFFFFFFFFFF);
} else {
r.low = LIT64(0x0000000000000000);
-#if defined(TARGET_S390X) || defined(TARGET_PPC)
+#if defined(TARGET_S390X) || defined(TARGET_PPC) || defined(TARGET_RISCV)
r.high = LIT64(0x7FFF800000000000);
#else
r.high = LIT64(0xFFFF800000000000);