[ARM] Create SubtargetFeatures from build attrs
An ELFObjectFile can now create SubtargetFeatures from the available
ARM build attributes, in a similar manner to MIPS. I've moved the
MIPS code into its own function and the ARM handler also has a
separate function.
Differential Revision: https://reviews.llvm.org/D28291
llvm-svn: 292403
diff --git a/llvm/test/tools/llvm-objdump/ARM/v6-neg-subfeatures.s b/llvm/test/tools/llvm-objdump/ARM/v6-neg-subfeatures.s
new file mode 100644
index 0000000..1a8d8f2
--- /dev/null
+++ b/llvm/test/tools/llvm-objdump/ARM/v6-neg-subfeatures.s
@@ -0,0 +1,10 @@
+@ RUN: llvm-mc < %s -triple armv6 -mattr=+vfp2 -filetype=obj | llvm-objdump -triple=arm -d - | FileCheck %s
+
+.eabi_attribute Tag_FP_arch, 1 // VFP2
+
+vfp2:
+ vadd.f32 s0, s1, s2
+
+@CHECK-LABEL: vfp2
+@CHECK-NOT: 81 0a 30 ee vadd.f32 s0, s1, s2
+@CHECK: unknown
diff --git a/llvm/test/tools/llvm-objdump/ARM/v6-subfeatures.s b/llvm/test/tools/llvm-objdump/ARM/v6-subfeatures.s
new file mode 100644
index 0000000..e8e8067
--- /dev/null
+++ b/llvm/test/tools/llvm-objdump/ARM/v6-subfeatures.s
@@ -0,0 +1,9 @@
+@ RUN: llvm-mc < %s -triple armv6 -mattr=+vfp2 -filetype=obj | llvm-objdump -triple=arm -d - | FileCheck %s
+
+.eabi_attribute Tag_FP_arch, 2 // VFP2
+
+vfp2:
+ vadd.f32 s0, s1, s2
+
+@CHECK-LABEL: vfp2
+@CHECK: 81 0a 30 ee vadd.f32 s0, s1, s2
diff --git a/llvm/test/tools/llvm-objdump/ARM/v7a-neg-subfeature.s b/llvm/test/tools/llvm-objdump/ARM/v7a-neg-subfeature.s
new file mode 100644
index 0000000..8083e5b
--- /dev/null
+++ b/llvm/test/tools/llvm-objdump/ARM/v7a-neg-subfeature.s
@@ -0,0 +1,44 @@
+@ RUN: llvm-mc < %s -triple armv7a -mattr=+vfp3,+neon,+fp16,+hwdiv-arm,+hwdiv -filetype=obj | llvm-objdump -triple=arm -d - | FileCheck %s
+@ RUN: llvm-mc < %s -triple armv7a -mattr=+vfp3,+neon,+fp16,+hwdiv-arm,+hwdiv -filetype=obj | llvm-objdump -triple=thumb -d - | FileCheck %s --check-prefix=CHECK-THUMB
+
+.eabi_attribute Tag_FP_arch, 0 // disallow vfp
+
+vfp2:
+ vmla.f32 s0, s1, s2
+
+@CHECK-LABEL: vfp2
+@CHECK-NOT: 81 0a 00 ee vmla.f32 s0, s1, s2
+@CHECK: unknown
+
+vfp3:
+ vmov.f32 s0, #0.5
+
+@CHECK-LABEL: vfp3
+@CHECK-NOT: 00 0a b6 ee vmov.f32 s0, #5.000000e-01
+
+neon:
+ vmla.f32 d0, d1, d2
+
+@CHECK-LABEL: neon
+@CHECK-NOT: 12 0d 01 f2 vmla.f32 d0, d1, d2
+@CHECK: unknown
+
+fp16:
+ vcvt.f32.f16 q0, d2
+
+@CHECK-LABEL: fp16
+@CHECK-NOT: 02 07 b6 f3 vcvt.f32.f16 q0, d2
+
+div_arm:
+ udiv r0, r1, r2
+
+@CHECK-LABEL: div_arm
+@CHECK-NOT: 11 f2 30 e7 udiv r0, r1, r2
+@CHECK: unknown
+
+.thumb
+div_thumb:
+ udiv r0, r1, r2
+
+@CHECK-LABEL: div_thumb
+@CHECK-THUMB-NOT: b1 fb f2 f0 udiv r0, r1, r2
diff --git a/llvm/test/tools/llvm-objdump/ARM/v7a-subfeature.s b/llvm/test/tools/llvm-objdump/ARM/v7a-subfeature.s
new file mode 100644
index 0000000..f435545
--- /dev/null
+++ b/llvm/test/tools/llvm-objdump/ARM/v7a-subfeature.s
@@ -0,0 +1,36 @@
+@ RUN: llvm-mc < %s -triple armv7a -mattr=+vfp3,+neon,+fp16,+hwdiv-arm -filetype=obj | llvm-objdump -triple=arm -d - | FileCheck %s
+
+.eabi_attribute Tag_FP_arch, 3 // VFP3
+.eabi_attribute Tag_Advanced_SIMD_arch, 2 // SIMDv1 with fp16
+.eabi_attribute Tag_DIV_use, 2 // permitted
+
+vfp2:
+ vmla.f32 s0, s1, s2
+
+@CHECK-LABEL: vfp2
+@CHECK: 81 0a 00 ee vmla.f32 s0, s1, s2
+
+vfp3:
+ vmov.f32 s0, #0.5
+
+@CHECK-LABEL: vfp3
+@CHECK: 00 0a b6 ee vmov.f32 s0, #5.000000e-01
+
+neon:
+ vmla.f32 d0, d1, d2
+
+@CHECK-LABEL: neon
+@CHECK: 12 0d 01 f2 vmla.f32 d0, d1, d2
+
+fp16:
+ vcvt.f32.f16 q0, d2
+
+@CHECK-LABEL: fp16
+@CHECK: 02 07 b6 f3 vcvt.f32.f16 q0, d2
+
+div:
+ udiv r0, r1, r2
+
+@CHECK-LABEL: div
+@CHECK: 11 f2 30 e7 udiv r0, r1, r2
+
diff --git a/llvm/test/tools/llvm-objdump/ARM/v7m-neg-subfeatures.s b/llvm/test/tools/llvm-objdump/ARM/v7m-neg-subfeatures.s
new file mode 100644
index 0000000..b3a79c7
--- /dev/null
+++ b/llvm/test/tools/llvm-objdump/ARM/v7m-neg-subfeatures.s
@@ -0,0 +1,18 @@
+@ RUN: llvm-mc < %s -triple armv7m -mattr=+vfp4 -filetype=obj | llvm-objdump -triple=thumb -d - | FileCheck %s
+
+.eabi_attribute Tag_CPU_arch, 10 // v7
+.eabi_attribute Tag_FP_arch, 0 // VFP4
+
+.thumb
+vfp2:
+ vmla.f32 s0, s1, s2
+
+@CHECK-LABEL: vfp2
+@CHECK-NOT: 00 ee 81 0a vmla.f32 s0, s1, s2
+
+.thumb
+vfp4:
+ vmov.f32 s0, #0.5
+
+@CHECK-LABEL:vfp4
+@CHECK-NOT: b6 ee 00 0a vmov.f32 s0, #5.000000e-01
diff --git a/llvm/test/tools/llvm-objdump/ARM/v7m-subfeatures.s b/llvm/test/tools/llvm-objdump/ARM/v7m-subfeatures.s
new file mode 100644
index 0000000..c7a40af
--- /dev/null
+++ b/llvm/test/tools/llvm-objdump/ARM/v7m-subfeatures.s
@@ -0,0 +1,26 @@
+@ RUN: llvm-mc < %s -triple armv7m -mattr=+vfp4 -filetype=obj | llvm-objdump -triple=thumb -d - | FileCheck %s
+
+.eabi_attribute Tag_CPU_arch, 10 // v7
+.eabi_attribute Tag_CPU_arch_profile, 0x4D // 'M' profile
+.eabi_attribute Tag_FP_arch, 5 // VFP4
+
+.thumb
+vfp2:
+ vmla.f32 s0, s1, s2
+
+@CHECK-LABEL: vfp2
+@CHECK: 00 ee 81 0a vmla.f32 s0, s1, s2
+
+.thumb
+vfp4:
+ vmov.f32 s0, #0.5
+
+@CHECK-LABEL: vfp4
+@CHECK: b6 ee 00 0a vmov.f32 s0, #5.000000e-01
+
+.thumb
+div:
+ udiv r0, r1, r2
+
+@CHECK-LABEL: div
+@CHECK: b1 fb f2 f0 udiv r0, r1, r2
diff --git a/llvm/test/tools/llvm-objdump/ARM/v7r-subfeatures.s b/llvm/test/tools/llvm-objdump/ARM/v7r-subfeatures.s
new file mode 100644
index 0000000..bbe40a1
--- /dev/null
+++ b/llvm/test/tools/llvm-objdump/ARM/v7r-subfeatures.s
@@ -0,0 +1,20 @@
+@ RUN: llvm-mc < %s -triple armv7r -mattr=+hwdiv-arm -filetype=obj | llvm-objdump -triple=thumb -d - | FileCheck %s
+@ RUN: llvm-mc < %s -triple armv7r -mattr=+hwdiv-arm -filetype=obj | llvm-objdump -triple=arm -d - | FileCheck %s --check-prefix=CHECK-ARM
+
+.eabi_attribute Tag_CPU_arch, 10 // v7
+.eabi_attribute Tag_CPU_arch_profile, 0x52 // 'R' profile
+
+.arm
+div_arm:
+ udiv r0, r1, r2
+
+@CHECK-LABEL: div_arm
+@CHECK-NOT: udiv r0, r1, r2
+@CHECK-ARM-NOT: udiv r0, r1, r2
+
+.thumb
+div_thumb:
+ udiv r0, r1, r2
+
+@CHECK-LABEL: div_thumb
+@CHECK: b1 fb f2 f0 udiv r0, r1, r2