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

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assemble the various mul instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199026 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Joerg Sonnenberger 2014-01-12 03:35:18 +00:00
parent 19236d53eb
commit 32cf3068d5
2 changed files with 22 additions and 4 deletions
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15
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
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