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Add missing mul aliases for armv4 support. Add checks that armv4 can 

assemble the various mul instructions.

llvm-svn: 199026
This commit is contained in:
Joerg Sonnenberger 2014-01-12 03:35:18 +00:00
parent ac114a3ce7
commit 485f00fe0f
2 changed files with 22 additions and 4 deletions
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15
llvm/lib/Target/ARM/ARMInstrInfo.td
View File

@ -5596,9 +5596,18 @@ def : ARMInstAlias<"neg${s}${p} $Rd, $Rm",
def : InstAlias<"nop${p}", (MOVr R0, R0, pred:$p, zero_reg)>,
Requires<[IsARM, NoV6]>;
// UMULL/SMULL are available on all arches, but the instruction definitions
// need difference constraints pre-v6. Use these aliases for the assembly
// parsing on pre-v6.
// MUL/UMLAL/SMLAL/UMULL/SMULL are available on all arches, but
// the instruction definitions need difference constraints pre-v6.
// Use these aliases for the assembly parsing on pre-v6.
def : InstAlias<"mul${s}${p} $Rd, $Rn, $Rm",
(MUL GPRnopc:$Rd, GPRnopc:$Rn, GPRnopc:$Rm, pred:$p, cc_out:$s)>,
Requires<[IsARM, NoV6]>;
def : InstAlias<"smlal${s}${p} $RdLo, $RdHi, $Rn, $Rm",
(SMLAL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s)>,
Requires<[IsARM, NoV6]>;
def : InstAlias<"umlal${s}${p} $RdLo, $RdHi, $Rn, $Rm",
(UMLAL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s)>,
Requires<[IsARM, NoV6]>;
def : InstAlias<"smull${s}${p} $RdLo, $RdHi, $Rn, $Rm",
(SMULL GPR:$RdLo, GPR:$RdHi, GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s)>,
Requires<[IsARM, NoV6]>;

11
llvm/test/MC/ARM/directive-arch-armv4.s
View File

@ -18,7 +18,7 @@
@ CHECK-OBJ: Flags [ (0x0)
@ CHECK-OBJ: ]
@ CHECK-OBJ: Address: 0x0
@ CHECK-OBJ: Offset: 0x34
@ CHECK-OBJ: Offset: 0x{{[0-9A-F]*}}
@ CHECK-OBJ: Size: 23
@ CHECK-OBJ: Link: 0
@ CHECK-OBJ: Info: 0
@ -28,3 +28,12 @@
@ CHECK-OBJ: 0000: 41160000 00616561 62690001 0C000000 |A....aeabi......|
@ CHECK-OBJ: 0010: 05340006 010801 |.4.....|
@ CHECK-OBJ: )
@ Check that multiplication is supported
mul r4, r5, r6
smull r4, r5, r6, r3
umull r4, r5, r6, r3
umlal r4, r5, r6, r3
umaal r4, r5, r6, r3
smlal r4, r5, r6, r3