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[mips] Make symbols an acceptable branch target when expanding compare-to-immediate-and-branch macros.

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Reviewers: vkalintiris

Subscribers: llvm-commits, vkalintiris, dim, seanbruno, dsanders

Differential Revision: http://reviews.llvm.org/D15369

llvm-svn: 262213
This commit is contained in:
Daniel Sanders 2016-02-29 11:24:49 +00:00
parent db0ff7d08a
commit 79a09c97b9
3 changed files with 19 additions and 1 deletions
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3
lib/Target/Mips/AsmParser/MipsAsmParser.cpp
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@ -2559,7 +2559,8 @@ bool MipsAsmParser::expandBranchImm(MCInst &Inst, SMLoc IDLoc,
assert(ImmOp.isImm() && "expected immediate operand kind");
const MCOperand &MemOffsetOp = Inst.getOperand(2);
assert(MemOffsetOp.isImm() && "expected immediate operand kind");
assert((MemOffsetOp.isImm() || MemOffsetOp.isExpr()) &&
"expected immediate or expression operand");
unsigned OpCode = 0;
switch(Inst.getOpcode()) {

6
test/MC/Mips/mips-expansions.s
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@ -129,6 +129,12 @@
beq $2, 0x10000, 1332
# CHECK-LE: lui $1, 1 # encoding: [0x01,0x00,0x01,0x3c]
# CHECK-LE: beq $2, $1, 1332 # encoding: [0x4d,0x01,0x41,0x10]
# CHECK-LE: nop # encoding: [0x00,0x00,0x00,0x00]
beq $2, 65538, foo
# CHECK-LE: lui $1, 1 # encoding: [0x01,0x00,0x01,0x3c]
# CHECK-LE: ori $1, $1, 2 # encoding: [0x02,0x00,0x21,0x34]
# CHECK-LE: beq $2, $1, foo # encoding: [A,A,0x41,0x10]
# CHECK-LE: nop # encoding: [0x00,0x00,0x00,0x00]
# Test ULH with immediate operand.

11
test/MC/Mips/mips64-expansions.s
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@ -84,6 +84,17 @@
# CHECK: beq $2, $1, 1332 # encoding: [0x4d,0x01,0x41,0x10]
# CHECK: nop # encoding: [0x00,0x00,0x00,0x00]
# Test one with a symbol in the third operand.
sym:
bne $2, 0x100010001, sym
# CHECK: addiu $1, $zero, 1 # encoding: [0x01,0x00,0x01,0x24]
# CHECK: dsll $1, $1, 16 # encoding: [0x38,0x0c,0x01,0x00]
# CHECK: ori $1, $1, 1 # encoding: [0x01,0x00,0x21,0x34]
# CHECK: dsll $1, $1, 16 # encoding: [0x38,0x0c,0x01,0x00]
# CHECK: ori $1, $1, 1 # encoding: [0x01,0x00,0x21,0x34]
# CHECK: bne $2, $1, sym # encoding: [A,A,0x41,0x14]
# CHECK: nop # encoding: [0x00,0x00,0x00,0x00]
# Test ulhu with 64-bit immediate addresses.
ulhu $8, 0x100010001
# CHECK: addiu $1, $zero, 1 # encoding: [0x01,0x00,0x01,0x24]