[llvm] r255034 - [ARM] Allowing SP/PC for AND/BIC mod_imm_not

[Renato Golin via llvm-commits]

Author: rengolin
Date: Tue Dec  8 12:10:58 2015
New Revision: 255034

URL: http://llvm.org/viewvc/llvm-project?rev=255034&view=rev
Log:
[ARM] Allowing SP/PC for AND/BIC mod_imm_not

AND/BIC instructions do accept SP/PC, so the register class should be
more generic (rGPR -> GPR) to cope with that case. Adding more tests.

Modified:
    llvm/trunk/lib/Target/ARM/ARMInstrInfo.td
    llvm/trunk/test/MC/ARM/basic-arm-instructions.s

Modified: llvm/trunk/lib/Target/ARM/ARMInstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMInstrInfo.td?rev=255034&r1=255033&r2=255034&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMInstrInfo.td (original)
+++ llvm/trunk/lib/Target/ARM/ARMInstrInfo.td Tue Dec  8 12:10:58 2015
@@ -5655,16 +5655,16 @@ def : ARMInstAlias<"mvn${s}${p} $Rd, $im
                    (MOVi rGPR:$Rd, mod_imm_not:$imm, pred:$p, cc_out:$s)>;
 // Same for AND <--> BIC
 def : ARMInstAlias<"bic${s}${p} $Rd, $Rn, $imm",
-                   (ANDri rGPR:$Rd, rGPR:$Rn, mod_imm_not:$imm,
+                   (ANDri GPR:$Rd, GPR:$Rn, mod_imm_not:$imm,
                           pred:$p, cc_out:$s)>;
 def : ARMInstAlias<"bic${s}${p} $Rdn, $imm",
-                   (ANDri rGPR:$Rdn, rGPR:$Rdn, mod_imm_not:$imm,
+                   (ANDri GPR:$Rdn, GPR:$Rdn, mod_imm_not:$imm,
                           pred:$p, cc_out:$s)>;
 def : ARMInstAlias<"and${s}${p} $Rd, $Rn, $imm",
-                   (BICri rGPR:$Rd, rGPR:$Rn, mod_imm_not:$imm,
+                   (BICri GPR:$Rd, GPR:$Rn, mod_imm_not:$imm,
                           pred:$p, cc_out:$s)>;
 def : ARMInstAlias<"and${s}${p} $Rdn, $imm",
-                   (BICri rGPR:$Rdn, rGPR:$Rdn, mod_imm_not:$imm,
+                   (BICri GPR:$Rdn, GPR:$Rdn, mod_imm_not:$imm,
                           pred:$p, cc_out:$s)>;
 
 // Likewise, "add Rd, mod_imm_neg" -> sub

Modified: llvm/trunk/test/MC/ARM/basic-arm-instructions.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/ARM/basic-arm-instructions.s?rev=255034&r1=255033&r2=255034&view=diff
==============================================================================
--- llvm/trunk/test/MC/ARM/basic-arm-instructions.s (original)
+++ llvm/trunk/test/MC/ARM/basic-arm-instructions.s Tue Dec  8 12:10:58 2015
@@ -349,6 +349,8 @@ Lforward:
     and r6, r7, r8, ror r2
     and r10, r1, r6, rrx
     and r2, r3, #0x7fffffff
+    and sp, sp, #0x7fffffff
+    and pc, pc, #0x7fffffff
 
     @ destination register is optional
     and r1, #0xf
@@ -397,6 +399,8 @@ Lforward:
 @ CHECK: and	r6, r7, r8, ror r2      @ encoding: [0x78,0x62,0x07,0xe0]
 @ CHECK: and	r10, r1, r6, rrx        @ encoding: [0x66,0xa0,0x01,0xe0]
 @ CHECK: bic	r2, r3, #-2147483648    @ encoding: [0x02,0x21,0xc3,0xe3]
+@ CHECK: bic	sp, sp, #-2147483648    @ encoding: [0x02,0xd1,0xcd,0xe3]
+@ CHECK: bic	pc, pc, #-2147483648    @ encoding: [0x02,0xf1,0xcf,0xe3]
 
 @ CHECK: and	r1, r1, #15             @ encoding: [0x0f,0x10,0x01,0xe2]
 @ CHECK: and	r1, r1, #15             @ encoding: [0x0f,0x10,0x01,0xe2]
@@ -502,6 +506,10 @@ Lforward:
         bic r6, r7, r8, asr r2
         bic r6, r7, r8, ror r2
         bic r10, r1, r6, rrx
+        bic r2, r3, #0x7fffffff
+        bic sp, sp, #0x7fffffff
+        bic pc, pc, #0x7fffffff
+
 
         @ destination register is optional
         bic r1, #0xf
@@ -548,6 +556,9 @@ Lforward:
 @ CHECK: bic	r6, r7, r8, asr r2      @ encoding: [0x58,0x62,0xc7,0xe1]
 @ CHECK: bic	r6, r7, r8, ror r2      @ encoding: [0x78,0x62,0xc7,0xe1]
 @ CHECK: bic	r10, r1, r6, rrx        @ encoding: [0x66,0xa0,0xc1,0xe1]
+@ CHECK: and  r2, r3, #-2147483648    @ encoding: [0x02,0x21,0x03,0xe2]
+@ CHECK: and  sp, sp, #-2147483648    @ encoding: [0x02,0xd1,0x0d,0xe2]
+@ CHECK: and  pc, pc, #-2147483648    @ encoding: [0x02,0xf1,0x0f,0xe2]
 
 
 @ CHECK: bic	r1, r1, #15             @ encoding: [0x0f,0x10,0xc1,0xe3]