AArch64/ARM64: accept and print floating-point immediate 0 as "#0.0"

It's been decided that in the future, the floating-point immediate in
instructions like "fcmeq v0.2s, v1.2s, #0.0" will be canonically "0.0", which
has been implemented on AArch64 already but not ARM64.

This fixes that issue.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207666 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 42 insertions, 40 deletions

diff --git a/test/MC/AArch64/neon-compare-instructions.s b/test/MC/AArch64/neon-compare-instructions.s
index d4e3ef5f19..dfc3ae7151 100644
--- a/test/MC/AArch64/neon-compare-instructions.s
+++ b/test/MC/AArch64/neon-compare-instructions.s
@@ -1,4 +1,5 @@
 // RUN: llvm-mc -triple aarch64-none-linux-gnu -mattr=+neon -show-encoding < %s | FileCheck %s
+// RUN: llvm-mc -triple arm64-none-linux-gnu -mattr=+neon -show-encoding < %s | FileCheck %s
 
 // Check that the assembler can handle the documented syntax for AArch64
 
@@ -255,13 +256,13 @@
          cmeq v9.4s, v7.4s, #0
          cmeq v3.2d, v31.2d, #0
 
-// CHECK: cmeq v0.8b, v15.8b, #0x0    // encoding: [0xe0,0x99,0x20,0x0e]
-// CHECK: cmeq v1.16b, v31.16b, #0x0  // encoding: [0xe1,0x9b,0x20,0x4e]
-// CHECK: cmeq v15.4h, v16.4h, #0x0   // encoding: [0x0f,0x9a,0x60,0x0e]
-// CHECK: cmeq v5.8h, v6.8h, #0x0     // encoding: [0xc5,0x98,0x60,0x4e]
-// CHECK: cmeq v29.2s, v27.2s, #0x0   // encoding: [0x7d,0x9b,0xa0,0x0e]
-// CHECK: cmeq v9.4s, v7.4s, #0x0     // encoding: [0xe9,0x98,0xa0,0x4e]
-// CHECK: cmeq v3.2d, v31.2d, #0x0    // encoding: [0xe3,0x9b,0xe0,0x4e]
+// CHECK: cmeq v0.8b, v15.8b, #{{0x0|0}}    // encoding: [0xe0,0x99,0x20,0x0e]
+// CHECK: cmeq v1.16b, v31.16b, #{{0x0|0}}  // encoding: [0xe1,0x9b,0x20,0x4e]
+// CHECK: cmeq v15.4h, v16.4h, #{{0x0|0}}   // encoding: [0x0f,0x9a,0x60,0x0e]
+// CHECK: cmeq v5.8h, v6.8h, #{{0x0|0}}     // encoding: [0xc5,0x98,0x60,0x4e]
+// CHECK: cmeq v29.2s, v27.2s, #{{0x0|0}}   // encoding: [0x7d,0x9b,0xa0,0x0e]
+// CHECK: cmeq v9.4s, v7.4s, #{{0x0|0}}     // encoding: [0xe9,0x98,0xa0,0x4e]
+// CHECK: cmeq v3.2d, v31.2d, #{{0x0|0}}    // encoding: [0xe3,0x9b,0xe0,0x4e]
 
 //----------------------------------------------------------------------
 // Vector Compare Mask Greater Than or Equal to Zero (Signed Integer)
@@ -274,13 +275,13 @@
          cmge v17.4s, v20.4s, #0
          cmge v3.2d, v31.2d, #0
 
-// CHECK: cmge v0.8b, v15.8b, #0x0    // encoding: [0xe0,0x89,0x20,0x2e]
-// CHECK: cmge v1.16b, v31.16b, #0x0  // encoding: [0xe1,0x8b,0x20,0x6e]
-// CHECK: cmge v15.4h, v16.4h, #0x0   // encoding: [0x0f,0x8a,0x60,0x2e]
-// CHECK: cmge v5.8h, v6.8h, #0x0     // encoding: [0xc5,0x88,0x60,0x6e]
-// CHECK: cmge v29.2s, v27.2s, #0x0   // encoding: [0x7d,0x8b,0xa0,0x2e]
-// CHECK: cmge v17.4s, v20.4s, #0x0   // encoding: [0x91,0x8a,0xa0,0x6e]
-// CHECK: cmge v3.2d, v31.2d, #0x0    // encoding: [0xe3,0x8b,0xe0,0x6e]
+// CHECK: cmge v0.8b, v15.8b, #{{0x0|0}}    // encoding: [0xe0,0x89,0x20,0x2e]
+// CHECK: cmge v1.16b, v31.16b, #{{0x0|0}}  // encoding: [0xe1,0x8b,0x20,0x6e]
+// CHECK: cmge v15.4h, v16.4h, #{{0x0|0}}   // encoding: [0x0f,0x8a,0x60,0x2e]
+// CHECK: cmge v5.8h, v6.8h, #{{0x0|0}}     // encoding: [0xc5,0x88,0x60,0x6e]
+// CHECK: cmge v29.2s, v27.2s, #{{0x0|0}}   // encoding: [0x7d,0x8b,0xa0,0x2e]
+// CHECK: cmge v17.4s, v20.4s, #{{0x0|0}}   // encoding: [0x91,0x8a,0xa0,0x6e]
+// CHECK: cmge v3.2d, v31.2d, #{{0x0|0}}    // encoding: [0xe3,0x8b,0xe0,0x6e]
 
 //----------------------------------------------------------------------
 // Vector Compare Mask Greater Than Zero (Signed Integer)
@@ -294,13 +295,13 @@
          cmgt v9.4s, v7.4s, #0
          cmgt v3.2d, v31.2d, #0
 
-// CHECK: cmgt v0.8b, v15.8b, #0x0    // encoding: [0xe0,0x89,0x20,0x0e]
-// CHECK: cmgt v1.16b, v31.16b, #0x0  // encoding: [0xe1,0x8b,0x20,0x4e]
-// CHECK: cmgt v15.4h, v16.4h, #0x0   // encoding: [0x0f,0x8a,0x60,0x0e]
-// CHECK: cmgt v5.8h, v6.8h, #0x0     // encoding: [0xc5,0x88,0x60,0x4e]
-// CHECK: cmgt v29.2s, v27.2s, #0x0   // encoding: [0x7d,0x8b,0xa0,0x0e]
-// CHECK: cmgt v9.4s, v7.4s, #0x0     // encoding: [0xe9,0x88,0xa0,0x4e]
-// CHECK: cmgt v3.2d, v31.2d, #0x0    // encoding: [0xe3,0x8b,0xe0,0x4e]
+// CHECK: cmgt v0.8b, v15.8b, #{{0x0|0}}    // encoding: [0xe0,0x89,0x20,0x0e]
+// CHECK: cmgt v1.16b, v31.16b, #{{0x0|0}}  // encoding: [0xe1,0x8b,0x20,0x4e]
+// CHECK: cmgt v15.4h, v16.4h, #{{0x0|0}}   // encoding: [0x0f,0x8a,0x60,0x0e]
+// CHECK: cmgt v5.8h, v6.8h, #{{0x0|0}}     // encoding: [0xc5,0x88,0x60,0x4e]
+// CHECK: cmgt v29.2s, v27.2s, #{{0x0|0}}   // encoding: [0x7d,0x8b,0xa0,0x0e]
+// CHECK: cmgt v9.4s, v7.4s, #{{0x0|0}}     // encoding: [0xe9,0x88,0xa0,0x4e]
+// CHECK: cmgt v3.2d, v31.2d, #{{0x0|0}}    // encoding: [0xe3,0x8b,0xe0,0x4e]
 
 //----------------------------------------------------------------------
 // Vector Compare Mask Less Than or Equal To Zero (Signed Integer)
@@ -313,13 +314,13 @@
          cmle v9.4s, v7.4s, #0
          cmle v3.2d, v31.2d, #0
 
-// CHECK: cmle v0.8b, v15.8b, #0x0    // encoding: [0xe0,0x99,0x20,0x2e]
-// CHECK: cmle v1.16b, v31.16b, #0x0  // encoding: [0xe1,0x9b,0x20,0x6e]
-// CHECK: cmle v15.4h, v16.4h, #0x0   // encoding: [0x0f,0x9a,0x60,0x2e]
-// CHECK: cmle v5.8h, v6.8h, #0x0     // encoding: [0xc5,0x98,0x60,0x6e]
-// CHECK: cmle v29.2s, v27.2s, #0x0   // encoding: [0x7d,0x9b,0xa0,0x2e]
-// CHECK: cmle v9.4s, v7.4s, #0x0     // encoding: [0xe9,0x98,0xa0,0x6e]
-// CHECK: cmle v3.2d, v31.2d, #0x0    // encoding: [0xe3,0x9b,0xe0,0x6e]
+// CHECK: cmle v0.8b, v15.8b, #{{0x0|0}}    // encoding: [0xe0,0x99,0x20,0x2e]
+// CHECK: cmle v1.16b, v31.16b, #{{0x0|0}}  // encoding: [0xe1,0x9b,0x20,0x6e]
+// CHECK: cmle v15.4h, v16.4h, #{{0x0|0}}   // encoding: [0x0f,0x9a,0x60,0x2e]
+// CHECK: cmle v5.8h, v6.8h, #{{0x0|0}}     // encoding: [0xc5,0x98,0x60,0x6e]
+// CHECK: cmle v29.2s, v27.2s, #{{0x0|0}}   // encoding: [0x7d,0x9b,0xa0,0x2e]
+// CHECK: cmle v9.4s, v7.4s, #{{0x0|0}}     // encoding: [0xe9,0x98,0xa0,0x6e]
+// CHECK: cmle v3.2d, v31.2d, #{{0x0|0}}    // encoding: [0xe3,0x9b,0xe0,0x6e]
 
 //----------------------------------------------------------------------
 // Vector Compare Mask Less Than Zero (Signed Integer)
@@ -332,13 +333,13 @@
          cmlt v9.4s, v7.4s, #0
          cmlt v3.2d, v31.2d, #0
 
-// CHECK: cmlt v0.8b, v15.8b, #0x0    // encoding: [0xe0,0xa9,0x20,0x0e]
-// CHECK: cmlt v1.16b, v31.16b, #0x0  // encoding: [0xe1,0xab,0x20,0x4e]
-// CHECK: cmlt v15.4h, v16.4h, #0x0   // encoding: [0x0f,0xaa,0x60,0x0e]
-// CHECK: cmlt v5.8h, v6.8h, #0x0     // encoding: [0xc5,0xa8,0x60,0x4e]
-// CHECK: cmlt v29.2s, v27.2s, #0x0   // encoding: [0x7d,0xab,0xa0,0x0e]
-// CHECK: cmlt v9.4s, v7.4s, #0x0     // encoding: [0xe9,0xa8,0xa0,0x4e]
-// CHECK: cmlt v3.2d, v31.2d, #0x0    // encoding: [0xe3,0xab,0xe0,0x4e]
+// CHECK: cmlt v0.8b, v15.8b, #{{0x0|0}}    // encoding: [0xe0,0xa9,0x20,0x0e]
+// CHECK: cmlt v1.16b, v31.16b, #{{0x0|0}}  // encoding: [0xe1,0xab,0x20,0x4e]
+// CHECK: cmlt v15.4h, v16.4h, #{{0x0|0}}   // encoding: [0x0f,0xaa,0x60,0x0e]
+// CHECK: cmlt v5.8h, v6.8h, #{{0x0|0}}     // encoding: [0xc5,0xa8,0x60,0x4e]
+// CHECK: cmlt v29.2s, v27.2s, #{{0x0|0}}   // encoding: [0x7d,0xab,0xa0,0x0e]
+// CHECK: cmlt v9.4s, v7.4s, #{{0x0|0}}     // encoding: [0xe9,0xa8,0xa0,0x4e]
+// CHECK: cmlt v3.2d, v31.2d, #{{0x0|0}}    // encoding: [0xe3,0xab,0xe0,0x4e]
 
 //----------------------------------------------------------------------
 // Vector Compare Mask Equal to Zero (Floating Point)
diff --git a/test/MC/AArch64/neon-scalar-fp-compare.s b/test/MC/AArch64/neon-scalar-fp-compare.s
index b798b34106..054f923322 100644
--- a/test/MC/AArch64/neon-scalar-fp-compare.s
+++ b/test/MC/AArch64/neon-scalar-fp-compare.s
@@ -1,4 +1,5 @@
 // RUN: llvm-mc -triple aarch64-none-linux-gnu -mattr=+neon -show-encoding < %s | FileCheck %s
+// RUN: llvm-mc -triple arm64-none-linux-gnu -mattr=+neon -show-encoding < %s | FileCheck %s
 
 // Check that the assembler can handle the documented syntax for AArch64
 
diff --git a/test/MC/ARM64/advsimd.s b/test/MC/ARM64/advsimd.s
index 9990864329..107d945478 100644
--- a/test/MC/ARM64/advsimd.s
+++ b/test/MC/ARM64/advsimd.s
@@ -608,11 +608,11 @@ foo:
 ; CHECK: cmgt.8b	v0, v0, #0              ; encoding: [0x00,0x88,0x20,0x0e]
 ; CHECK: cmle.8b	v0, v0, #0              ; encoding: [0x00,0x98,0x20,0x2e]
 ; CHECK: cmlt.8b	v0, v0, #0              ; encoding: [0x00,0xa8,0x20,0x0e]
-; CHECK: fcmeq.2s	v0, v0, #0      ; encoding: [0x00,0xd8,0xa0,0x0e]
-; CHECK: fcmge.2s	v0, v0, #0      ; encoding: [0x00,0xc8,0xa0,0x2e]
-; CHECK: fcmgt.2s	v0, v0, #0      ; encoding: [0x00,0xc8,0xa0,0x0e]
-; CHECK: fcmle.2s	v0, v0, #0      ; encoding: [0x00,0xd8,0xa0,0x2e]
-; CHECK: fcmlt.2s	v0, v0, #0      ; encoding: [0x00,0xe8,0xa0,0x0e]
+; CHECK: fcmeq.2s	v0, v0, #0.0      ; encoding: [0x00,0xd8,0xa0,0x0e]
+; CHECK: fcmge.2s	v0, v0, #0.0      ; encoding: [0x00,0xc8,0xa0,0x2e]
+; CHECK: fcmgt.2s	v0, v0, #0.0      ; encoding: [0x00,0xc8,0xa0,0x0e]
+; CHECK: fcmle.2s	v0, v0, #0.0      ; encoding: [0x00,0xd8,0xa0,0x2e]
+; CHECK: fcmlt.2s	v0, v0, #0.0      ; encoding: [0x00,0xe8,0xa0,0x0e]
 ; CHECK: cmlt.8b	v8, v14, #0             ; encoding: [0xc8,0xa9,0x20,0x0e]
 ; CHECK: cmlt.16b	v8, v14, #0     ; encoding: [0xc8,0xa9,0x20,0x4e]
 ; CHECK: cmlt.4h	v8, v14, #0             ; encoding: [0xc8,0xa9,0x60,0x0e]