[X86][BtVer2] Add tests that show how ReadAfterLd is missing for some

instructions.

In the Btver2 model, there are a few InstRW overrides that don't specify a
ReadAfterLd for the register input operand.

As a result, a few AVX variants of horizontal operations and most vector logic
operations with a folded memory operand don't have a ReadAdvance info associated
to their input register operands.

llvm-svn: 328865

diff --git a/llvm/test/tools/llvm-mca/X86/BtVer2/hadd-read-after-ld-1.s b/llvm/test/tools/llvm-mca/X86/BtVer2/hadd-read-after-ld-1.s
new file mode 100644 (file)
index 0000000..9b4c39b
--- /dev/null
+++ b/llvm/test/tools/llvm-mca/X86/BtVer2/hadd-read-after-ld-1.s
@@ -0,0 +1,23 @@
+# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=btver2 -iterations=1 -timeline -resource-pressure=false < %s | FileCheck %s
+
+vshufps $0, %xmm0, %xmm1, %xmm1
+vhaddps (%rdi), %xmm1, %xmm2
+
+
+# CHECK:      Instruction Info:
+# CHECK-NEXT: [1]: #uOps
+# CHECK-NEXT: [2]: Latency
+# CHECK-NEXT: [3]: RThroughput
+# CHECK-NEXT: [4]: MayLoad
+# CHECK-NEXT: [5]: MayStore
+# CHECK-NEXT: [6]: HasSideEffects
+
+# CHECK:      [1]    [2]    [3]    [4]    [5]    [6]   Instructions:
+# CHECK-NEXT:  1      1     0.50                       vshufps $0, %xmm0, %xmm1, %xmm1
+# CHECK-NEXT:  1      8     1.00    *                  vhaddps (%rdi), %xmm1, %xmm2
+
+# CHECK:      Timeline view:
+# CHECK-NEXT:                    0
+# CHECK-NEXT: Index    0123456789 
+# CHECK:      [0,0]    DeER .    .     vshufps $0, %xmm0, %xmm1, %xmm1
+# CHECK-NEXT: [0,1]    DeeeeeeeeER     vhaddps (%rdi), %xmm1, %xmm2

diff --git a/llvm/test/tools/llvm-mca/X86/BtVer2/hadd-read-after-ld-2.s b/llvm/test/tools/llvm-mca/X86/BtVer2/hadd-read-after-ld-2.s
new file mode 100644 (file)
index 0000000..524b078
--- /dev/null
+++ b/llvm/test/tools/llvm-mca/X86/BtVer2/hadd-read-after-ld-2.s
@@ -0,0 +1,23 @@
+# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=btver2 -iterations=1 -timeline -resource-pressure=false < %s | FileCheck %s
+
+vshufps $0, %xmm0, %xmm1, %xmm1
+vhaddps (%rdi), %ymm1, %ymm2
+
+# CHECK:      Instruction Info:
+# CHECK-NEXT: [1]: #uOps
+# CHECK-NEXT: [2]: Latency
+# CHECK-NEXT: [3]: RThroughput
+# CHECK-NEXT: [4]: MayLoad
+# CHECK-NEXT: [5]: MayStore
+# CHECK-NEXT: [6]: HasSideEffects
+
+# CHECK:      [1]    [2]    [3]    [4]    [5]    [6]   Instructions:
+# CHECK-NEXT:  1      1     0.50                       vshufps $0, %xmm0, %xmm1, %xmm1
+# CHECK-NEXT:  1      8     2.00    *                  vhaddps (%rdi), %ymm1, %ymm2
+
+
+# CHECK:      Timeline view:
+# CHECK-NEXT:                    01
+# CHECK-NEXT: Index    0123456789  
+# CHECK:      [0,0]    DeER .    ..    vshufps $0, %xmm0, %xmm1, %xmm1
+# CHECK-NEXT: [0,1]    D=eeeeeeeeER    vhaddps (%rdi), %ymm1, %ymm2

diff --git a/llvm/test/tools/llvm-mca/X86/BtVer2/vec-logic-read-after-ld-1.s b/llvm/test/tools/llvm-mca/X86/BtVer2/vec-logic-read-after-ld-1.s
new file mode 100644 (file)
index 0000000..ed3cb23
--- /dev/null
+++ b/llvm/test/tools/llvm-mca/X86/BtVer2/vec-logic-read-after-ld-1.s
@@ -0,0 +1,23 @@
+# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=btver2 -iterations=1 -timeline -resource-pressure=false < %s | FileCheck %s
+
+vaddps %xmm0, %xmm0, %xmm1
+vandps (%rdi), %xmm1, %xmm2
+
+# CHECK:      Instruction Info:
+# CHECK-NEXT: [1]: #uOps
+# CHECK-NEXT: [2]: Latency
+# CHECK-NEXT: [3]: RThroughput
+# CHECK-NEXT: [4]: MayLoad
+# CHECK-NEXT: [5]: MayStore
+# CHECK-NEXT: [6]: HasSideEffects
+
+# CHECK:      [1]    [2]    [3]    [4]    [5]    [6]   Instructions:
+# CHECK-NEXT:  1      3     1.00                       vaddps  %xmm0, %xmm0, %xmm1
+# CHECK-NEXT:  1      6     1.00    *                  vandps  (%rdi), %xmm1, %xmm2
+
+
+# CHECK:      Timeline view:
+# CHECK-NEXT:                    01
+# CHECK-NEXT: Index    0123456789
+# CHECK:      [0,0]    DeeeER    ..    vaddps  %xmm0, %xmm0, %xmm1
+# CHECK-NEXT: [0,1]    D===eeeeeeER    vandps  (%rdi), %xmm1, %xmm2

diff --git a/llvm/test/tools/llvm-mca/X86/BtVer2/vec-logic-read-after-ld-2.s b/llvm/test/tools/llvm-mca/X86/BtVer2/vec-logic-read-after-ld-2.s
new file mode 100644 (file)
index 0000000..b6d94d0
--- /dev/null
+++ b/llvm/test/tools/llvm-mca/X86/BtVer2/vec-logic-read-after-ld-2.s
@@ -0,0 +1,23 @@
+# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=btver2 -iterations=1 -timeline -resource-pressure=false < %s | FileCheck %s
+
+vaddps %ymm0, %ymm0, %ymm1
+vandps (%rdi), %ymm1, %ymm2
+
+# CHECK:      Instruction Info:
+# CHECK-NEXT: [1]: #uOps
+# CHECK-NEXT: [2]: Latency
+# CHECK-NEXT: [3]: RThroughput
+# CHECK-NEXT: [4]: MayLoad
+# CHECK-NEXT: [5]: MayStore
+# CHECK-NEXT: [6]: HasSideEffects
+
+# CHECK:      [1]    [2]    [3]    [4]    [5]    [6]   Instructions:
+# CHECK-NEXT:  2      3     2.00                       vaddps  %ymm0, %ymm0, %ymm1
+# CHECK-NEXT:  2      6     2.00    *                  vandps  (%rdi), %ymm1, %ymm2
+
+
+# CHECK:      Timeline view:
+# CHECK-NEXT:                    01
+# CHECK-NEXT: Index    0123456789
+# CHECK:      [0,0]    DeeeER    ..    vaddps  %ymm0, %ymm0, %ymm1
+# CHECK-NEXT: [0,1]    .D==eeeeeeER    vandps  (%rdi), %ymm1, %ymm2