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merge GHC HEAD
[ghc-hetmet.git]
/
compiler
/
nativeGen
/
X86
/
Regs.hs
diff --git
a/compiler/nativeGen/X86/Regs.hs
b/compiler/nativeGen/X86/Regs.hs
index
dc0df49
..
28d148c
100644
(file)
--- a/
compiler/nativeGen/X86/Regs.hs
+++ b/
compiler/nativeGen/X86/Regs.hs
@@
-332,10
+332,24
@@
fake5 = regSingle 21
{-
AMD x86_64 architecture:
{-
AMD x86_64 architecture:
-- Registers 0-16 have 32-bit counterparts (eax, ebx etc.)
-- Registers 0-7 have 16-bit counterparts (ax, bx etc.)
-- Registers 0-3 have 8 bit counterparts (ah, bh etc.)
-
+- All 16 integer registers are addressable as 8, 16, 32 and 64-bit values:
+
+ 8 16 32 64
+ ---------------------
+ al ax eax rax
+ bl bx ebx rbx
+ cl cx ecx rcx
+ dl dx edx rdx
+ sil si esi rsi
+ dil si edi rdi
+ bpl bp ebp rbp
+ spl sp esp rsp
+ r10b r10w r10d r10
+ r11b r11w r11d r11
+ r12b r12w r12d r12
+ r13b r13w r13d r13
+ r14b r14w r14d r14
+ r15b r15w r15d r15
-}
rax, rbx, rcx, rdx, rsp, rbp, rsi, rdi,
-}
rax, rbx, rcx, rdx, rsp, rbp, rsi, rdi,