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[mips] [IAS] Add support for the B{L,G}{T,E}(U) branch pseudo-instructions.
Summary: This does not include support for the immediate variants of these pseudo-instructions. Fixes llvm.org/PR20968. Reviewers: dsanders Reviewed By: dsanders Subscribers: seanbruno, emaste, llvm-commits Differential Revision: http://reviews.llvm.org/D8537 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239905 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Toma Tabacu
21
test/MC/Mips/branch-pseudos-bad.s
Normal file
21
test/MC/Mips/branch-pseudos-bad.s
Normal file
@@ -0,0 +1,21 @@
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# RUN: not llvm-mc %s -arch=mips -mcpu=mips32 2>&1 | FileCheck %s
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# Check for errors when using conditional branch pseudos after .set noat.
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.set noat
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local_label:
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blt $7, $8, local_label
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# CHECK: :[[@LINE-1]]:3: error: pseudo-instruction requires $at, which is not available
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bltu $7, $8, local_label
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# CHECK: :[[@LINE-1]]:3: error: pseudo-instruction requires $at, which is not available
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ble $7, $8, local_label
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# CHECK: :[[@LINE-1]]:3: error: pseudo-instruction requires $at, which is not available
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bleu $7, $8, local_label
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# CHECK: :[[@LINE-1]]:3: error: pseudo-instruction requires $at, which is not available
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bge $7, $8, local_label
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# CHECK: :[[@LINE-1]]:3: error: pseudo-instruction requires $at, which is not available
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bgeu $7, $8, local_label
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# CHECK: :[[@LINE-1]]:3: error: pseudo-instruction requires $at, which is not available
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bgt $7, $8, local_label
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# CHECK: :[[@LINE-1]]:3: error: pseudo-instruction requires $at, which is not available
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bgtu $7, $8, local_label
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# CHECK: :[[@LINE-1]]:3: error: pseudo-instruction requires $at, which is not available
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189
test/MC/Mips/branch-pseudos.s
Normal file
189
test/MC/Mips/branch-pseudos.s
Normal file
@@ -0,0 +1,189 @@
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# RUN: llvm-mc %s -arch=mips -mcpu=mips32 -show-encoding | FileCheck %s
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# RUN: llvm-mc %s -arch=mips -mcpu=mips32 2>&1 | \
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# RUN: FileCheck %s --check-prefix=WARNING
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.text
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local_label:
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blt $7, $8, local_label
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# CHECK: slt $1, $7, $8 # encoding: [0x00,0xe8,0x08,0x2a]
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# CHECK: bnez $1, local_label # encoding: [0x14,0x20,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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blt $7, $8, global_label
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# CHECK: slt $1, $7, $8 # encoding: [0x00,0xe8,0x08,0x2a]
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# CHECK: bnez $1, global_label # encoding: [0x14,0x20,A,A]
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# CHECK: # fixup A - offset: 0, value: global_label, kind: fixup_Mips_PC16
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# CHECK: nop
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blt $7, $0, local_label
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# CHECK: bltz $7, local_label # encoding: [0x04,0xe0,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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blt $0, $8, local_label
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# CHECK: bgtz $8, local_label # encoding: [0x1d,0x00,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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blt $0, $0, local_label
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# CHECK: bltz $zero, local_label # encoding: [0x04,0x00,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bltu $7, $8, local_label
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# CHECK: sltu $1, $7, $8 # encoding: [0x00,0xe8,0x08,0x2b]
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# CHECK: bnez $1, local_label # encoding: [0x14,0x20,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bltu $7, $8, global_label
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# CHECK: sltu $1, $7, $8 # encoding: [0x00,0xe8,0x08,0x2b]
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# CHECK: bnez $1, global_label # encoding: [0x14,0x20,A,A]
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# CHECK: # fixup A - offset: 0, value: global_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bltu $7, $0, local_label
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# CHECK: nop
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bltu $0, $8, local_label
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# CHECK: bnez $8, local_label # encoding: [0x15,0x00,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bltu $0, $0, local_label
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# CHECK: nop
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ble $7, $8, local_label
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# CHECK: slt $1, $8, $7 # encoding: [0x01,0x07,0x08,0x2a]
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# CHECK: beqz $1, local_label # encoding: [0x10,0x20,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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ble $7, $8, global_label
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# CHECK: slt $1, $8, $7 # encoding: [0x01,0x07,0x08,0x2a]
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# CHECK: beqz $1, global_label # encoding: [0x10,0x20,A,A]
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# CHECK: # fixup A - offset: 0, value: global_label, kind: fixup_Mips_PC16
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# CHECK: nop
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ble $7, $0, local_label
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# CHECK: blez $7, local_label # encoding: [0x18,0xe0,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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ble $0, $8, local_label
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# CHECK: bgez $8, local_label # encoding: [0x05,0x01,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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ble $0, $0, local_label
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# WARNING: :[[@LINE-1]]:3: warning: branch is always taken
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# CHECK: blez $zero, local_label # encoding: [0x18,0x00,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bleu $7, $8, local_label
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# CHECK: sltu $1, $8, $7 # encoding: [0x01,0x07,0x08,0x2b]
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# CHECK: beqz $1, local_label # encoding: [0x10,0x20,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bleu $7, $8, global_label
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# CHECK: sltu $1, $8, $7 # encoding: [0x01,0x07,0x08,0x2b]
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# CHECK: beqz $1, global_label # encoding: [0x10,0x20,A,A]
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# CHECK: # fixup A - offset: 0, value: global_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bleu $7, $0, local_label
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# CHECK: beqz $7, local_label # encoding: [0x10,0xe0,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bleu $0, $8, local_label
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# WARNING: :[[@LINE-1]]:3: warning: branch is always taken
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# CHECK: b local_label # encoding: [0x10,0x00,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bleu $0, $0, local_label
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# WARNING: :[[@LINE-1]]:3: warning: branch is always taken
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# CHECK: b local_label # encoding: [0x10,0x00,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bge $7, $8, local_label
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# CHECK: slt $1, $7, $8 # encoding: [0x00,0xe8,0x08,0x2a]
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# CHECK: beqz $1, local_label # encoding: [0x10,0x20,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bge $7, $8, global_label
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# CHECK: slt $1, $7, $8 # encoding: [0x00,0xe8,0x08,0x2a]
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# CHECK: beqz $1, global_label # encoding: [0x10,0x20,A,A]
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# CHECK: # fixup A - offset: 0, value: global_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bge $7, $0, local_label
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# CHECK: bgez $7, local_label # encoding: [0x04,0xe1,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bge $0, $8, local_label
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# CHECK: blez $8, local_label # encoding: [0x19,0x00,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bge $0, $0, local_label
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# WARNING: :[[@LINE-1]]:3: warning: branch is always taken
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# CHECK: bgez $zero, local_label # encoding: [0x04,0x01,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bgeu $7, $8, local_label
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# CHECK: sltu $1, $7, $8 # encoding: [0x00,0xe8,0x08,0x2b]
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# CHECK: beqz $1, local_label # encoding: [0x10,0x20,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bgeu $7, $8, global_label
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# CHECK: sltu $1, $7, $8 # encoding: [0x00,0xe8,0x08,0x2b]
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# CHECK: beqz $1, global_label # encoding: [0x10,0x20,A,A]
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# CHECK: # fixup A - offset: 0, value: global_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bgeu $7, $0, local_label
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# WARNING: :[[@LINE-1]]:3: warning: branch is always taken
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# CHECK: b local_label # encoding: [0x10,0x00,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bgeu $0, $8, local_label
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# CHECK: beqz $8, local_label # encoding: [0x11,0x00,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bgeu $0, $0, local_label
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# WARNING: :[[@LINE-1]]:3: warning: branch is always taken
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# CHECK: b local_label # encoding: [0x10,0x00,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bgt $7, $8, local_label
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# CHECK: slt $1, $8, $7 # encoding: [0x01,0x07,0x08,0x2a]
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# CHECK: bnez $1, local_label # encoding: [0x14,0x20,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bgt $7, $8, global_label
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# CHECK: slt $1, $8, $7 # encoding: [0x01,0x07,0x08,0x2a]
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# CHECK: bnez $1, global_label # encoding: [0x14,0x20,A,A]
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# CHECK: # fixup A - offset: 0, value: global_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bgt $7, $0, local_label
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# CHECK: bgtz $7, local_label # encoding: [0x1c,0xe0,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bgt $0, $8, local_label
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# CHECK: bltz $8, local_label # encoding: [0x05,0x00,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bgt $0, $0, local_label
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# CHECK: bgtz $zero, local_label # encoding: [0x1c,0x00,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bgtu $7, $8, local_label
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# CHECK: sltu $1, $8, $7 # encoding: [0x01,0x07,0x08,0x2b]
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# CHECK: bnez $1, local_label # encoding: [0x14,0x20,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bgtu $7, $8, global_label
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# CHECK: sltu $1, $8, $7 # encoding: [0x01,0x07,0x08,0x2b]
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# CHECK: bnez $1, global_label # encoding: [0x14,0x20,A,A]
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# CHECK: # fixup A - offset: 0, value: global_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bgtu $7, $0, local_label
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# CHECK: bnez $7, local_label # encoding: [0x14,0xe0,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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bgtu $0, $8, local_label
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# CHECK: nop
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bgtu $0, $0, local_label
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# CHECK: bnez $zero, local_label # encoding: [0x14,0x00,A,A]
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# CHECK: # fixup A - offset: 0, value: local_label, kind: fixup_Mips_PC16
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# CHECK: nop
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@@ -20,6 +20,46 @@
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beq $2, 0, 1332
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beq $2, 1, 1332
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blt $7, $8, local_label
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blt $7, $0, local_label
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blt $0, $8, local_label
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blt $0, $0, local_label
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bltu $7, $8, local_label
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bltu $7, $0, local_label
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bltu $0, $8, local_label
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bltu $0, $0, local_label
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ble $7, $8, local_label
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ble $7, $0, local_label
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ble $0, $8, local_label
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ble $0, $0, local_label
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bleu $7, $8, local_label
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bleu $7, $0, local_label
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bleu $0, $8, local_label
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bleu $0, $0, local_label
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bge $7, $8, local_label
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bge $7, $0, local_label
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bge $0, $8, local_label
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bge $0, $0, local_label
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bgeu $7, $8, local_label
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bgeu $7, $0, local_label
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bgeu $0, $8, local_label
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bgeu $0, $0, local_label
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bgt $7, $8, local_label
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bgt $7, $0, local_label
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bgt $0, $8, local_label
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bgt $0, $0, local_label
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bgtu $7, $8, local_label
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bgtu $7, $0, local_label
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bgtu $0, $8, local_label
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bgtu $0, $0, local_label
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add $4, $5, $6
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.set noreorder
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@@ -56,5 +96,77 @@
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beq $2, 1, 1332
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# CHECK: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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blt $7, $8, local_label
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# CHECK: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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blt $7, $0, local_label
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# CHECK-NOT: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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blt $0, $8, local_label
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# CHECK-NOT: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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blt $0, $0, local_label
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# CHECK-NOT: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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bltu $7, $8, local_label
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# CHECK: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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bltu $7, $0, local_label
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# CHECK-NOT: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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bltu $0, $8, local_label
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# CHECK-NOT: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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bltu $0, $0, local_label
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# CHECK-NOT: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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ble $7, $8, local_label
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# CHECK: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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ble $7, $0, local_label
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# CHECK-NOT: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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ble $0, $8, local_label
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# CHECK-NOT: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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ble $0, $0, local_label
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# CHECK-NOT: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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bleu $7, $8, local_label
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# CHECK: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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bleu $7, $0, local_label
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# CHECK-NOT: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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bleu $0, $8, local_label
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# CHECK-NOT: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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bleu $0, $0, local_label
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# CHECK-NOT: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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bge $7, $8, local_label
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# CHECK: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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bge $7, $0, local_label
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# CHECK-NOT: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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bge $0, $8, local_label
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# CHECK-NOT: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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bge $0, $0, local_label
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# CHECK-NOT: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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bgeu $7, $8, local_label
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# CHECK: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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bgeu $7, $0, local_label
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# CHECK-NOT: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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bgeu $0, $8, local_label
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# CHECK-NOT: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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bgeu $0, $0, local_label
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# CHECK-NOT: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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bgt $7, $8, local_label
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# CHECK: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
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bgt $7, $0, local_label
|
||||
# CHECK-NOT: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
|
||||
bgt $0, $8, local_label
|
||||
# CHECK-NOT: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
|
||||
bgt $0, $0, local_label
|
||||
# CHECK-NOT: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
|
||||
|
||||
bgtu $7, $8, local_label
|
||||
# CHECK: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
|
||||
bgtu $7, $0, local_label
|
||||
# CHECK-NOT: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
|
||||
bgtu $0, $8, local_label
|
||||
# CHECK-NOT: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
|
||||
bgtu $0, $0, local_label
|
||||
# CHECK-NOT: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
|
||||
|
||||
add $4, $5, $6
|
||||
# CHECK-NOT: [[@LINE-1]]:3: warning: macro instruction expanded into multiple instructions
|
||||
|
||||
Reference in New Issue
Block a user