diff options
Diffstat (limited to 'runtime/x86_64/i64_utod.S')
| -rw-r--r-- | runtime/x86_64/i64_utod.S | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/runtime/x86_64/i64_utod.S b/runtime/x86_64/i64_utod.S index 62e6e484..4d4870fc 100644 --- a/runtime/x86_64/i64_utod.S +++ b/runtime/x86_64/i64_utod.S @@ -39,18 +39,18 @@ // Conversion unsigned long -> double-precision float FUNCTION(__compcert_i64_utod) - testq %rdi, %rdi + testq INT_ARG_1, INT_ARG_1 js 1f - pxor %xmm0, %xmm0 // if < 2^63, - cvtsi2sdq %rdi, %xmm0 // convert as if signed + pxor FP_RES, FP_RES // if < 2^63, + cvtsi2sdq INT_ARG_1, FP_RES // convert as if signed ret 1: // if >= 2^63, use round-to-odd trick - movq %rdi, %rax + movq INT_ARG_1, %rax shrq %rax - andq $1, %rdi - orq %rdi, %rax // (arg >> 1) | (arg & 1) - pxor %xmm0, %xmm0 - cvtsi2sdq %rax, %xmm0 // convert as if signed - addsd %xmm0, %xmm0 // multiply result by 2.0 + andq $1, INT_ARG_1 + orq INT_ARG_1, %rax // (arg >> 1) | (arg & 1) + pxor FP_RES, FP_RES + cvtsi2sdq %rax, FP_RES // convert as if signed + addsd FP_RES, FP_RES // multiply result by 2.0 ret ENDFUNCTION(__compcert_i64_utod) |