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Use R15 as temporary register.

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This commit is contained in:
losfair 2019-03-17 21:27:19 +08:00
parent 08f4526b45
commit fcfde7352a
1 changed files with 14 additions and 10 deletions
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24
lib/dynasm-backend/src/codegen_x64.rs
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@ -4284,17 +4284,19 @@ impl FunctionCodeGenerator for X64FunctionCode {
*/
dynasm!(
assembler
; mov r13d, 1593835520u32 as i32 //float 9.22337203E+18
; movd xmm1, r13d
; movq xmm5, r15
; mov r15d, 1593835520u32 as i32 //float 9.22337203E+18
; movd xmm1, r15d
; movd xmm2, Rd(reg as u8)
; movd xmm3, Rd(reg as u8)
; subss xmm2, xmm1
; cvttss2si Rq(reg as u8), xmm2
; mov r13, QWORD 0x8000000000000000u64 as i64
; xor r13, Rq(reg as u8)
; mov r15, QWORD 0x8000000000000000u64 as i64
; xor r15, Rq(reg as u8)
; cvttss2si Rq(reg as u8), xmm3
; ucomiss xmm3, xmm1
; cmovae Rq(reg as u8), r13
; cmovae Rq(reg as u8), r15
; movq r15, xmm5
);
},
WpType::F32,
@ -4741,17 +4743,19 @@ impl FunctionCodeGenerator for X64FunctionCode {
dynasm!(
assembler
; mov r13, QWORD 4890909195324358656u64 as i64 //double 9.2233720368547758E+18
; movq xmm1, r13
; movq xmm5, r15
; mov r15, QWORD 4890909195324358656u64 as i64 //double 9.2233720368547758E+18
; movq xmm1, r15
; movq xmm2, Rq(reg as u8)
; movq xmm3, Rq(reg as u8)
; subsd xmm2, xmm1
; cvttsd2si Rq(reg as u8), xmm2
; mov r13, QWORD 0x8000000000000000u64 as i64
; xor r13, Rq(reg as u8)
; mov r15, QWORD 0x8000000000000000u64 as i64
; xor r15, Rq(reg as u8)
; cvttsd2si Rq(reg as u8), xmm3
; ucomisd xmm3, xmm1
; cmovae Rq(reg as u8), r13
; cmovae Rq(reg as u8), r15
; movq r15, xmm5
);
},
WpType::F64,