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| author | Ulrich Weigand <ulrich.weigand@de.ibm.com> | 2013-06-20 16:15:12 +0000 |
|---|---|---|
| committer | Ulrich Weigand <ulrich.weigand@de.ibm.com> | 2013-06-20 16:15:12 +0000 |
| commit | 0db5379fe643cbe738b4831e337251819cc5dc5d (patch) | |
| tree | 6333a56cf7ec94642e458842fb411c6ce6179212 /test | |
| parent | 4828eacaf3f620fbb11a5dc9d162c134a30b52a7 (diff) | |
| download | llvm-0db5379fe643cbe738b4831e337251819cc5dc5d.tar.gz llvm-0db5379fe643cbe738b4831e337251819cc5dc5d.tar.bz2 llvm-0db5379fe643cbe738b4831e337251819cc5dc5d.tar.xz | |
[PowerPC] Support compare mnemonics with implied CR0
Just like for branch mnemonics (where support was recently added), the
assembler is supposed to support extended mnemonics for the compare
instructions where no condition register is specified explicitly
(and CR0 is assumed implicitly).
This patch adds support for those extended compare mnemonics.
Index: llvm-head/test/MC/PowerPC/ppc64-encoding-ext.s
===================================================================
--- llvm-head.orig/test/MC/PowerPC/ppc64-encoding-ext.s
+++ llvm-head/test/MC/PowerPC/ppc64-encoding-ext.s
@@ -449,21 +449,37 @@
# CHECK: cmpdi 2, 3, 128 # encoding: [0x2d,0x23,0x00,0x80]
cmpdi 2, 3, 128
+# CHECK: cmpdi 0, 3, 128 # encoding: [0x2c,0x23,0x00,0x80]
+ cmpdi 3, 128
# CHECK: cmpd 2, 3, 4 # encoding: [0x7d,0x23,0x20,0x00]
cmpd 2, 3, 4
+# CHECK: cmpd 0, 3, 4 # encoding: [0x7c,0x23,0x20,0x00]
+ cmpd 3, 4
# CHECK: cmpldi 2, 3, 128 # encoding: [0x29,0x23,0x00,0x80]
cmpldi 2, 3, 128
+# CHECK: cmpldi 0, 3, 128 # encoding: [0x28,0x23,0x00,0x80]
+ cmpldi 3, 128
# CHECK: cmpld 2, 3, 4 # encoding: [0x7d,0x23,0x20,0x40]
cmpld 2, 3, 4
+# CHECK: cmpld 0, 3, 4 # encoding: [0x7c,0x23,0x20,0x40]
+ cmpld 3, 4
# CHECK: cmpwi 2, 3, 128 # encoding: [0x2d,0x03,0x00,0x80]
cmpwi 2, 3, 128
+# CHECK: cmpwi 0, 3, 128 # encoding: [0x2c,0x03,0x00,0x80]
+ cmpwi 3, 128
# CHECK: cmpw 2, 3, 4 # encoding: [0x7d,0x03,0x20,0x00]
cmpw 2, 3, 4
+# CHECK: cmpw 0, 3, 4 # encoding: [0x7c,0x03,0x20,0x00]
+ cmpw 3, 4
# CHECK: cmplwi 2, 3, 128 # encoding: [0x29,0x03,0x00,0x80]
cmplwi 2, 3, 128
+# CHECK: cmplwi 0, 3, 128 # encoding: [0x28,0x03,0x00,0x80]
+ cmplwi 3, 128
# CHECK: cmplw 2, 3, 4 # encoding: [0x7d,0x03,0x20,0x40]
cmplw 2, 3, 4
+# CHECK: cmplw 0, 3, 4 # encoding: [0x7c,0x03,0x20,0x40]
+ cmplw 3, 4
# FIXME: Trap mnemonics
Index: llvm-head/lib/Target/PowerPC/PPCInstrInfo.td
===================================================================
--- llvm-head.orig/lib/Target/PowerPC/PPCInstrInfo.td
+++ llvm-head/lib/Target/PowerPC/PPCInstrInfo.td
@@ -2201,3 +2201,12 @@ defm : BranchExtendedMnemonic<"ne", 68>;
defm : BranchExtendedMnemonic<"nu", 100>;
defm : BranchExtendedMnemonic<"ns", 100>;
+def : InstAlias<"cmpwi $rA, $imm", (CMPWI CR0, gprc:$rA, s16imm:$imm)>;
+def : InstAlias<"cmpw $rA, $rB", (CMPW CR0, gprc:$rA, gprc:$rB)>;
+def : InstAlias<"cmplwi $rA, $imm", (CMPLWI CR0, gprc:$rA, u16imm:$imm)>;
+def : InstAlias<"cmplw $rA, $rB", (CMPLW CR0, gprc:$rA, gprc:$rB)>;
+def : InstAlias<"cmpdi $rA, $imm", (CMPDI CR0, g8rc:$rA, s16imm:$imm)>;
+def : InstAlias<"cmpd $rA, $rB", (CMPD CR0, g8rc:$rA, g8rc:$rB)>;
+def : InstAlias<"cmpldi $rA, $imm", (CMPLDI CR0, g8rc:$rA, u16imm:$imm)>;
+def : InstAlias<"cmpld $rA, $rB", (CMPLD CR0, g8rc:$rA, g8rc:$rB)>;
+
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184435 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/MC/PowerPC/ppc64-encoding-ext.s | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/test/MC/PowerPC/ppc64-encoding-ext.s b/test/MC/PowerPC/ppc64-encoding-ext.s index cac76baa2c..883edbf066 100644 --- a/test/MC/PowerPC/ppc64-encoding-ext.s +++ b/test/MC/PowerPC/ppc64-encoding-ext.s @@ -449,21 +449,37 @@ # CHECK: cmpdi 2, 3, 128 # encoding: [0x2d,0x23,0x00,0x80] cmpdi 2, 3, 128 +# CHECK: cmpdi 0, 3, 128 # encoding: [0x2c,0x23,0x00,0x80] + cmpdi 3, 128 # CHECK: cmpd 2, 3, 4 # encoding: [0x7d,0x23,0x20,0x00] cmpd 2, 3, 4 +# CHECK: cmpd 0, 3, 4 # encoding: [0x7c,0x23,0x20,0x00] + cmpd 3, 4 # CHECK: cmpldi 2, 3, 128 # encoding: [0x29,0x23,0x00,0x80] cmpldi 2, 3, 128 +# CHECK: cmpldi 0, 3, 128 # encoding: [0x28,0x23,0x00,0x80] + cmpldi 3, 128 # CHECK: cmpld 2, 3, 4 # encoding: [0x7d,0x23,0x20,0x40] cmpld 2, 3, 4 +# CHECK: cmpld 0, 3, 4 # encoding: [0x7c,0x23,0x20,0x40] + cmpld 3, 4 # CHECK: cmpwi 2, 3, 128 # encoding: [0x2d,0x03,0x00,0x80] cmpwi 2, 3, 128 +# CHECK: cmpwi 0, 3, 128 # encoding: [0x2c,0x03,0x00,0x80] + cmpwi 3, 128 # CHECK: cmpw 2, 3, 4 # encoding: [0x7d,0x03,0x20,0x00] cmpw 2, 3, 4 +# CHECK: cmpw 0, 3, 4 # encoding: [0x7c,0x03,0x20,0x00] + cmpw 3, 4 # CHECK: cmplwi 2, 3, 128 # encoding: [0x29,0x03,0x00,0x80] cmplwi 2, 3, 128 +# CHECK: cmplwi 0, 3, 128 # encoding: [0x28,0x03,0x00,0x80] + cmplwi 3, 128 # CHECK: cmplw 2, 3, 4 # encoding: [0x7d,0x03,0x20,0x40] cmplw 2, 3, 4 +# CHECK: cmplw 0, 3, 4 # encoding: [0x7c,0x03,0x20,0x40] + cmplw 3, 4 # FIXME: Trap mnemonics |