[ARM] Add support for ORR and ORN instruction substitutions

Recently support was added for substituting one intruction for another by
negating or inverting the immediate, but ORR and ORN were missed so this patch
adds them.

This one is slightly different to the others in that ORN only exists in thumb,
so we only do the substitution in thumb.

Differential Revision: https://reviews.llvm.org/D32534

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302224 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARM/ARMInstrThumb2.td b/lib/Target/ARM/ARMInstrThumb2.td
index d6598e38304f4c3b3f345dc1da8d0077dab40c2f..bf3d820e7b7d0d6922cc5232a6fdd63ffd2198ee 100644 (file)
--- a/lib/Target/ARM/ARMInstrThumb2.td
+++ b/lib/Target/ARM/ARMInstrThumb2.td
@@ -4706,6 +4706,19 @@ def : t2InstSubst<"and${s}${p} $Rd, $Rn, $imm",
 def : t2InstSubst<"and${s}${p} $Rdn, $imm",
                   (t2BICri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm_not:$imm,
                            pred:$p, cc_out:$s)>;
+// And ORR <--> ORN
+def : t2InstSubst<"orn${s}${p} $Rd, $Rn, $imm",
+                  (t2ORRri rGPR:$Rd, rGPR:$Rn, t2_so_imm_not:$imm,
+                           pred:$p, cc_out:$s)>;
+def : t2InstSubst<"orn${s}${p} $Rdn, $imm",
+                  (t2ORRri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm_not:$imm,
+                           pred:$p, cc_out:$s)>;
+def : t2InstSubst<"orr${s}${p} $Rd, $Rn, $imm",
+                  (t2ORNri rGPR:$Rd, rGPR:$Rn, t2_so_imm_not:$imm,
+                           pred:$p, cc_out:$s)>;
+def : t2InstSubst<"orr${s}${p} $Rdn, $imm",
+                  (t2ORNri rGPR:$Rdn, rGPR:$Rdn, t2_so_imm_not:$imm,
+                           pred:$p, cc_out:$s)>;
 // Likewise, "add Rd, t2_so_imm_neg" -> sub
 def : t2InstSubst<"add${s}${p} $Rd, $Rn, $imm",
                   (t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm,

diff --git a/test/MC/ARM/negative-immediates-fail.s b/test/MC/ARM/negative-immediates-fail.s
index dd45e4316389cf6518cc0ec2f7f49172054f5e3d..959e55eebb5a8f9f0241ff6daf858a3d41be76b2 100644 (file)
--- a/test/MC/ARM/negative-immediates-fail.s
+++ b/test/MC/ARM/negative-immediates-fail.s
@@ -11,3 +11,8 @@ ADC r0, r1, #0xFFFFFE02
 
 ADD.W r0, r0, #0xFF01FF01
 # CHECK: error: immediate operand must be in the range [0,7]
+
+ORR r0, r1, #0xFFFFFF00
+# CHECK: error: instruction requires: thumb2
+ORN r0, r1, #0xFFFFFF00
+# CHECK: error: instruction requires: thumb2

diff --git a/test/MC/ARM/negative-immediates-thumb1-fail.s b/test/MC/ARM/negative-immediates-thumb1-fail.s
index 0e8525ede90312faac380e9c9e864b6629a102ef..3648721203a0e947903de5687c37875ed20dd676 100644 (file)
--- a/test/MC/ARM/negative-immediates-thumb1-fail.s
+++ b/test/MC/ARM/negative-immediates-thumb1-fail.s
@@ -13,3 +13,8 @@ SUBs r1, r0, #0xFFFFFFF5
 
 SUBs r0, #0xFFFFFEFF
 # CHECK: error: immediate operand must be in the range [0,255]
+
+ORRs r0, r1, #0xFFFFFF00
+# CHECK: error: instruction requires: thumb2
+ORNs r0, r1, #0xFFFFFF00
+# CHECK: error: instruction requires: thumb2

diff --git a/test/MC/ARM/negative-immediates.s b/test/MC/ARM/negative-immediates.s
index aa3998163d88312875cab68c21c92b0acb6f2d5f..38a6bbb1b7b4337638aa23722f5654eb1fd0804d 100644 (file)
--- a/test/MC/ARM/negative-immediates.s
+++ b/test/MC/ARM/negative-immediates.s
@@ -98,6 +98,22 @@
 # CHECK: and r0, r1, #16777472 @ encoding: [0x01,0xf0,0x01,0x20]
 # CHECK-DISABLED: error: instruction requires: NegativeImmediates
 # CHECK-DISABLED: BIC
+       ORR r0, r1, #0xFFFFFF00
+# CHECK-DISABLED: error: instruction requires: NegativeImmediates
+# CHECK-DISABLED: ORR
+# CHECK: orn r0, r1, #255
+       ORR r0, r1, #0xFEFFFEFF
+# CHECK: orn r0, r1, #16777472 @ encoding: [0x61,0xf0,0x01,0x20]
+# CHECK-DISABLED: error: instruction requires: NegativeImmediates
+# CHECK-DISABLED: ORR
+       ORN r0, r1, #0xFFFFFF00
+# CHECK: orr r0, r1, #255
+# CHECK-DISABLED: error: instruction requires: NegativeImmediates
+# CHECK-DISABLED: ORN
+       ORN r0, r1, #0xFEFFFEFF
+# CHECK: orr r0, r1, #16777472 @ encoding: [0x41,0xf0,0x01,0x20]
+# CHECK-DISABLED: error: instruction requires: NegativeImmediates
+# CHECK-DISABLED: ORN
        CMP r0, #0xFFFFFF01
 # CHECK: cmn.w r0, #255
 # CHECK-DISABLED: error: instruction requires: NegativeImmediates