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| author | Dale Johannesen <dalej@apple.com> | 2008-10-07 18:54:28 +0000 |
|---|---|---|
| committer | Dale Johannesen <dalej@apple.com> | 2008-10-07 18:54:28 +0000 |
| commit | d8fd3564c135f40835dce121d6df485a135e9e6b (patch) | |
| tree | 59e6dd6621a3adfa03476b6d6b0b328f7c203931 /lib | |
| parent | 97c315a1f5868daafe62f6a32a2722698e0f476c (diff) | |
| download | external_llvm-d8fd3564c135f40835dce121d6df485a135e9e6b.tar.gz external_llvm-d8fd3564c135f40835dce121d6df485a135e9e6b.tar.bz2 external_llvm-d8fd3564c135f40835dce121d6df485a135e9e6b.zip | |
Model hardwired inputs & outputs of x86 8-bit divides correctly.
Fixes local RA miscompilation of gcc.c-torture/execute/20020904-1.c -O0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57257 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.td | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td index 691a7cfe7b..f635d7a542 100644 --- a/lib/Target/X86/X86InstrInfo.td +++ b/lib/Target/X86/X86InstrInfo.td @@ -728,7 +728,7 @@ def IMUL32m : I<0xF7, MRM5m, (outs), (ins i32mem:$src), } // unsigned division/remainder -let Defs = [AX,EFLAGS], Uses = [AL,AH] in +let Defs = [AL,AH,EFLAGS], Uses = [AX] in def DIV8r : I<0xF6, MRM6r, (outs), (ins GR8:$src), // AX/r8 = AL,AH "div{b}\t$src", []>; let Defs = [AX,DX,EFLAGS], Uses = [AX,DX] in @@ -738,7 +738,7 @@ let Defs = [EAX,EDX,EFLAGS], Uses = [EAX,EDX] in def DIV32r : I<0xF7, MRM6r, (outs), (ins GR32:$src), // EDX:EAX/r32 = EAX,EDX "div{l}\t$src", []>; let mayLoad = 1 in { -let Defs = [AX,EFLAGS], Uses = [AL,AH] in +let Defs = [AL,AH,EFLAGS], Uses = [AX] in def DIV8m : I<0xF6, MRM6m, (outs), (ins i8mem:$src), // AX/[mem8] = AL,AH "div{b}\t$src", []>; let Defs = [AX,DX,EFLAGS], Uses = [AX,DX] in @@ -750,7 +750,7 @@ def DIV32m : I<0xF7, MRM6m, (outs), (ins i32mem:$src), // EDX:EAX/[mem32] = } // Signed division/remainder. -let Defs = [AX,EFLAGS], Uses = [AL,AH] in +let Defs = [AL,AH,EFLAGS], Uses = [AX] in def IDIV8r : I<0xF6, MRM7r, (outs), (ins GR8:$src), // AX/r8 = AL,AH "idiv{b}\t$src", []>; let Defs = [AX,DX,EFLAGS], Uses = [AX,DX] in @@ -760,7 +760,7 @@ let Defs = [EAX,EDX,EFLAGS], Uses = [EAX,EDX] in def IDIV32r: I<0xF7, MRM7r, (outs), (ins GR32:$src), // EDX:EAX/r32 = EAX,EDX "idiv{l}\t$src", []>; let mayLoad = 1, mayLoad = 1 in { -let Defs = [AX,EFLAGS], Uses = [AL,AH] in +let Defs = [AL,AH,EFLAGS], Uses = [AX] in def IDIV8m : I<0xF6, MRM7m, (outs), (ins i8mem:$src), // AX/[mem8] = AL,AH "idiv{b}\t$src", []>; let Defs = [AX,DX,EFLAGS], Uses = [AX,DX] in |