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Merge branch 'master' into v2.1

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Mike Pall 2022-07-08 15:12:43 +02:00
commit e3bae12fc0
2 changed files with 12 additions and 14 deletions
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13
src/vm_x64.dasc
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@ -359,9 +359,6 @@
|.macro sseconst_1, reg, tmp // Synthesize 1.0.
| sseconst_hi reg, tmp, 3ff00000
|.endmacro
|.macro sseconst_m1, reg, tmp // Synthesize -1.0.
| sseconst_hi reg, tmp, bff00000
|.endmacro
|.macro sseconst_2p52, reg, tmp // Synthesize 2^52.
| sseconst_hi reg, tmp, 43300000
|.endmacro
@ -2530,15 +2527,17 @@ static void build_subroutines(BuildCtx *ctx)
| addsd xmm1, xmm3 // (|x| + 2^52) - 2^52
| subsd xmm1, xmm3
| orpd xmm1, xmm2 // Merge sign bit back in.
| sseconst_1 xmm3, RD
| .if mode == 1 // ceil(x)?
| sseconst_m1 xmm2, RD // Must subtract -1 to preserve -0.
| cmpsd xmm0, xmm1, 6 // x > result?
| andpd xmm0, xmm3
| addsd xmm1, xmm0 // If yes, add 1.
| orpd xmm1, xmm2 // Merge sign bit back in (again).
| .else // floor(x)?
| sseconst_1 xmm2, RD
| cmpsd xmm0, xmm1, 1 // x < result?
| andpd xmm0, xmm3
| subsd xmm1, xmm0 // If yes, subtract 1.
| .endif
| andpd xmm0, xmm2
| subsd xmm1, xmm0 // If yes, subtract +-1.
|.endif
| movaps xmm0, xmm1
|1:

13
src/vm_x86.dasc
View File

@ -464,9 +464,6 @@
|.macro sseconst_1, reg, tmp // Synthesize 1.0.
| sseconst_hi reg, tmp, 3ff00000
|.endmacro
|.macro sseconst_m1, reg, tmp // Synthesize -1.0.
| sseconst_hi reg, tmp, bff00000
|.endmacro
|.macro sseconst_2p52, reg, tmp // Synthesize 2^52.
| sseconst_hi reg, tmp, 43300000
|.endmacro
@ -2989,15 +2986,17 @@ static void build_subroutines(BuildCtx *ctx)
| addsd xmm1, xmm3 // (|x| + 2^52) - 2^52
| subsd xmm1, xmm3
| orpd xmm1, xmm2 // Merge sign bit back in.
| sseconst_1 xmm3, RDa
| .if mode == 1 // ceil(x)?
| sseconst_m1 xmm2, RDa // Must subtract -1 to preserve -0.
| cmpsd xmm0, xmm1, 6 // x > result?
| andpd xmm0, xmm3
| addsd xmm1, xmm0 // If yes, add 1.
| orpd xmm1, xmm2 // Merge sign bit back in (again).
| .else // floor(x)?
| sseconst_1 xmm2, RDa
| cmpsd xmm0, xmm1, 1 // x < result?
| andpd xmm0, xmm3
| subsd xmm1, xmm0 // If yes, subtract 1.
| .endif
| andpd xmm0, xmm2
| subsd xmm1, xmm0 // If yes, subtract +-1.
|.endif
| movaps xmm0, xmm1
|1: