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[ARM] Thumb2 LDR (literal) should accept PC as the destination

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The version of this instruction with the .w suffix already correctly accepts
this, but the alias without the .w did not.

Differential Revision: https://reviews.llvm.org/D26499



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@286446 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Oliver Stannard 2016-11-10 13:20:41 +00:00
parent b2e86a3cab
commit 4a04eb017b
2 changed files with 6 additions and 1 deletions
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2
lib/Target/ARM/ARMInstrThumb2.td
View File

@ -4407,7 +4407,7 @@ def : t2InstAlias<"ldrsh${p} $Rt, $addr",
(t2LDRSHs rGPR:$Rt, t2addrmode_so_reg:$addr, pred:$p)>;
def : t2InstAlias<"ldr${p} $Rt, $addr",
(t2LDRpci GPRnopc:$Rt, t2ldrlabel:$addr, pred:$p)>;
(t2LDRpci GPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
def : t2InstAlias<"ldrb${p} $Rt, $addr",
(t2LDRBpci rGPR:$Rt, t2ldrlabel:$addr, pred:$p)>;
def : t2InstAlias<"ldrh${p} $Rt, $addr",

5
test/MC/ARM/basic-thumb2-instructions.s
View File

@ -886,6 +886,7 @@ _func:
ldr.w r5, _foo
ldr lr, (_strcmp-4)
ldr sp, _foo
ldr pc, _foo
@ CHECK: ldr.w r5, _foo @ encoding: [0x5f'A',0xf8'A',A,0x50'A']
@ CHECK: @ fixup A - offset: 0, value: _foo, kind: fixup_t2_ldst_pcrel_12
@ -898,6 +899,10 @@ _func:
@ CHECK: ldr.w sp, _foo @ encoding: [0x5f'A',0xf8'A',A,0xd0'A']
@ CHECK: @ fixup A - offset: 0, value: _foo, kind: fixup_t2_ldst_pcrel_12
@ CHECK-BE: ldr.w sp, _foo @ encoding: [0xf8'A',0x5f'A',0xd0'A',A]
@ CHECK-BE: @ fixup A - offset: 0, value: _foo, kind: fixup_t2_ldst_pcrel_12
@ CHECK: ldr.w pc, _foo @ encoding: [0x5f'A',0xf8'A',A,0xf0'A']
@ CHECK: @ fixup A - offset: 0, value: _foo, kind: fixup_t2_ldst_pcrel_12
@ CHECK-BE: ldr.w pc, _foo @ encoding: [0xf8'A',0x5f'A',0xf0'A',A]
@ CHECK-BE: @ fixup A - offset: 0, value: _foo, kind: fixup_t2_ldst_pcrel_12
ldr r7, [pc, #8]