Move mcdc-templates-merge.test from #121194
diff --git a/llvm/test/tools/llvm-cov/Inputs/mcdc-templates-merge.cpp b/llvm/test/tools/llvm-cov/Inputs/mcdc-templates-merge.cpp
new file mode 100644
index 0000000..0abb308
--- /dev/null
+++ b/llvm/test/tools/llvm-cov/Inputs/mcdc-templates-merge.cpp
@@ -0,0 +1,51 @@
+#include <cstdio>
+
+template <typename Ty>
+bool ab(Ty a, Ty b) {
+  return (a && b);
+}
+// CHECK: [[@LINE-2]]| 4| return
+
+// CHECK: MC/DC Coverage for Decision{{[:]}}  50.00%
+// CHECK: MC/DC Coverage for Decision{{[:]}}  50.00%
+// CHECK: MC/DC Coverage for Decision{{[:]}}   0.00%
+// CHECK-NOT: MC/DC Coverage for Decision{{[:]}}
+
+// CHECK: _Z2abIbEbT_S0_{{[:]}}
+// CHECK: | | MC/DC Coverage for Decision{{[:]}}  50.00%
+
+// CHECK: _Z2abIxEbT_S0_{{[:]}}
+// CHECK: | | MC/DC Coverage for Decision{{[:]}}  50.00%
+
+// CHECK: Unexecuted instantiation{{[:]}} _Z2abIdEbT_S0_
+
+template <bool C>
+bool Cab(bool a, bool b) {
+  return (a && b && C);
+}
+// CHECK: [[@LINE-2]]| 4| return
+
+// CHECK: MC/DC Coverage for Decision{{[:]}}   0.00%
+// CHECK: MC/DC Coverage for Decision{{[:]}}  50.00%
+// CHECK-NOT: MC/DC Coverage for Decision{{[:]}}
+
+// CHECK: _Z3CabILb0EEbbb{{[:]}}
+// CHECK: | | MC/DC Coverage for Decision{{[:]}}   0.00%
+
+// CHECK: _Z3CabILb1EEbbb{{[:]}}
+// CHECK: | | MC/DC Coverage for Decision{{[:]}}  50.00%
+
+// CHECK: [[@LINE+1]]| 1|int main
+int main(int argc, char **argv) {
+  printf("%d\n", Cab<false>(false, false));
+  printf("%d\n", Cab<false>(true, true));
+  printf("%d\n", Cab<true>(true, false));
+  printf("%d\n", Cab<true>(true, true));
+  printf("%d\n", ab(false, false));
+  printf("%d\n", ab(true, true));
+  printf("%d\n", ab(1LL, 0LL));
+  printf("%d\n", ab(1LL, 1LL));
+  if (argc == 2)
+    printf("%d\n", ab(0.0, 0.0));
+  return 0;
+}
diff --git a/llvm/test/tools/llvm-cov/Inputs/mcdc-templates-merge.proftext b/llvm/test/tools/llvm-cov/Inputs/mcdc-templates-merge.proftext
new file mode 100644
index 0000000..6136946
--- /dev/null
+++ b/llvm/test/tools/llvm-cov/Inputs/mcdc-templates-merge.proftext
@@ -0,0 +1,73 @@
+_Z2abIbEbT_S0_
+# Func Hash:
+1550
+# Num Counters:
+3
+# Counter Values:
+2
+1
+1
+# Num Bitmap Bytes:
+$1
+# Bitmap Byte Values:
+0x5
+
+
+_Z2abIxEbT_S0_
+# Func Hash:
+1550
+# Num Counters:
+3
+# Counter Values:
+2
+2
+1
+# Num Bitmap Bytes:
+$1
+# Bitmap Byte Values:
+0x6
+
+
+_Z3CabILb0EEbbb
+# Func Hash:
+99214
+# Num Counters:
+5
+# Counter Values:
+2
+1
+0
+1
+1
+# Num Bitmap Bytes:
+$1
+# Bitmap Byte Values:
+0x5
+
+
+_Z3CabILb1EEbbb
+# Func Hash:
+99214
+# Num Counters:
+5
+# Counter Values:
+2
+1
+1
+2
+1
+# Num Bitmap Bytes:
+$1
+# Bitmap Byte Values:
+0xa
+
+
+main
+# Func Hash:
+175973464
+# Num Counters:
+2
+# Counter Values:
+1
+0
+
diff --git a/llvm/test/tools/llvm-cov/Inputs/mcdc-templates-merge.yaml b/llvm/test/tools/llvm-cov/Inputs/mcdc-templates-merge.yaml
new file mode 100644
index 0000000..ba46319
--- /dev/null
+++ b/llvm/test/tools/llvm-cov/Inputs/mcdc-templates-merge.yaml
@@ -0,0 +1,105 @@
+--- !ELF
+FileHeader:
+  Class:           ELFCLASS64
+  Data:            ELFDATA2LSB
+  OSABI:           ELFOSABI_GNU
+  Type:            ET_REL
+  Machine:         EM_X86_64
+  SectionHeaderStringTable: .strtab
+Sections:
+  - Name:            __llvm_covfun
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_GNU_RETAIN ]
+    AddressAlign:    0x8
+    Content:         FAD58DE7366495DB2500000058247D0A00000000249EC986A505B62F0101010105050127210C020109070010200502000700100500110185808080080501050021
+  - Name:            '__llvm_covfun (1)'
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_GNU_RETAIN ]
+    AddressAlign:    0x8
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+  - Name:            '__llvm_covfun (2)'
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_GNU_RETAIN ]
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+  - Name:            '__llvm_covfun (3)'
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_GNU_RETAIN ]
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+  - Name:            '__llvm_covfun (4)'
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_GNU_RETAIN ]
+    AddressAlign:    0x8
+    Content:         8A05A22CB467C37D320000000E06000000000000249EC986A505B62F0101020105050906010415020201010B000C280302000B0011300502010200000B000C050010001130090602000000100011
+  - Name:            '__llvm_covfun (5)'
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_GNU_RETAIN ]
+    AddressAlign:    0x8
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+  - Name:            __llvm_covmap
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_GNU_RETAIN ]
+    AddressAlign:    0x8
+    Content:         000000001D0000000000000006000000021A0000186D6364632D74656D706C617465732D6D657267652E637070000000
+  - Name:            __llvm_prf_names
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_ALLOC, SHF_GNU_RETAIN ]
+    AddressAlign:    0x1
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+  - Type:            SectionHeaderTable
+    Sections:
+      - Name:            .strtab
+      - Name:            __llvm_covfun
+      - Name:            '__llvm_covfun (1)'
+      - Name:            '__llvm_covfun (2)'
+      - Name:            '__llvm_covfun (3)'
+      - Name:            '__llvm_covfun (4)'
+      - Name:            '__llvm_covfun (5)'
+      - Name:            __llvm_covmap
+      - Name:            __llvm_prf_names
+      - Name:            .symtab
+Symbols:
+  - Name:            __llvm_covmap
+    Type:            STT_SECTION
+    Section:         __llvm_covmap
+  - Name:            __llvm_prf_names
+    Type:            STT_SECTION
+    Section:         __llvm_prf_names
+  - Name:            __covrec_DB956436E78DD5FAu
+    Type:            STT_OBJECT
+    Section:         __llvm_covfun
+    Binding:         STB_WEAK
+    Size:            0x41
+    Other:           [ STV_HIDDEN ]
+  - Name:            __covrec_E8BF1D5048B3C39Cu
+    Type:            STT_OBJECT
+    Section:         '__llvm_covfun (1)'
+    Binding:         STB_WEAK
+    Size:            0x64
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+    Section:         '__llvm_covfun (2)'
+    Binding:         STB_WEAK
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+    Binding:         STB_WEAK
+    Size:            0x4E
+    Other:           [ STV_HIDDEN ]
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+    Type:            STT_OBJECT
+    Section:         '__llvm_covfun (4)'
+    Binding:         STB_WEAK
+    Size:            0x4E
+    Other:           [ STV_HIDDEN ]
+  - Name:            __covrec_263F8FAC2C190017u
+    Type:            STT_OBJECT
+    Section:         '__llvm_covfun (5)'
+    Binding:         STB_WEAK
+    Size:            0x4E
+    Other:           [ STV_HIDDEN ]
+...
diff --git a/llvm/test/tools/llvm-cov/branch-macros.test b/llvm/test/tools/llvm-cov/branch-macros.test
index 2ff4355..b60da15 100644
--- a/llvm/test/tools/llvm-cov/branch-macros.test
+++ b/llvm/test/tools/llvm-cov/branch-macros.test
@@ -1,5 +1,7 @@
 // RUN: llvm-profdata merge %S/Inputs/branch-macros.proftext -o %t.profdata
 // RUN: llvm-cov show --show-expansions --show-branches=count %S/Inputs/branch-macros.o32l -instr-profile %t.profdata -path-equivalence=/tmp,%S/Inputs | FileCheck %S/Inputs/branch-macros.cpp -check-prefixes=CHECK,BRCOV -D#C=999
+// RUN: llvm-cov report --show-branch-summary %S/Inputs/branch-macros.o32l -instr-profile %t.profdata -path-equivalence=/tmp,%S/Inputs %S/Inputs/branch-macros.cpp | FileCheck %s -check-prefix=FILE
+
 // RUN: llvm-cov show --binary-counters --show-expansions --show-branches=count %S/Inputs/branch-macros.o32l -instr-profile %t.profdata -path-equivalence=/tmp,%S/Inputs | FileCheck %S/Inputs/branch-macros.cpp -check-prefixes=CHECK,BRCOV -D#C=1
 // RUN: llvm-cov report --show-branch-summary %S/Inputs/branch-macros.o32l -instr-profile %t.profdata -show-functions -path-equivalence=/tmp,%S/Inputs %S/Inputs/branch-macros.cpp | FileCheck %s -check-prefix=REPORT
 
@@ -14,3 +16,9 @@
 // REPORT-NEXT: main                              1       0 100.00%         6       0 100.00%         0       0   0.00%
 // REPORT-NEXT: ---
 // REPORT-NEXT: TOTAL                            16       4  75.00%        32       0 100.00%        40      16  60.00%
+
+// FILE:      Filename          Regions Missed Regions  Cover   Functions Missed Functions Executed      Lines  Missed Lines    Cover   Branches Missed Branches Cover
+// FILE-NEXT: ---
+// FILE-NEXT: branch-macros.cpp      16              4  75.00%          3                0  100.00%         32             0   100.00%        40              16 60.00%
+// FILE-NEXT: ---
+// FILE-NEXT: TOTAL                  16              4  75.00%          3                0  100.00%         32             0   100.00%        40              16 60.00%
diff --git a/llvm/test/tools/llvm-cov/mcdc-templates-merge.test b/llvm/test/tools/llvm-cov/mcdc-templates-merge.test
new file mode 100644
index 0000000..cacd3b6b
--- /dev/null
+++ b/llvm/test/tools/llvm-cov/mcdc-templates-merge.test
@@ -0,0 +1,27 @@
+# Test `merge-instantiations=merge/any/all`
+
+RUN: yaml2obj %S/Inputs/mcdc-templates-merge.yaml -o %t.o
+RUN: llvm-profdata merge %S/Inputs/mcdc-templates-merge.proftext -o %t.profdata
+
+RUN: llvm-cov show --show-mcdc -show-instantiations=true %t.o -instr-profile %t.profdata -path-equivalence=.,%S/Inputs | FileCheck %S/Inputs/mcdc-templates-merge.cpp
+
+RUN: llvm-cov report --show-mcdc-summary %t.o -instr-profile %t.profdata -path-equivalence=.,%S/Inputs | FileCheck %s
+
+REPORT: mcdc-templates-merge.cpp
+
+# Regions
+CHECK:      10  1  90.00%
+
+# Functions
+CHECK:       3  0 100.00%
+
+# Lines
+CHECK:      19  1  94.74%
+
+# Branches
+CHECK:      11  3  72.73%
+
+# MC/DC Conditions
+CHECK:       4  2  50.00%
+
+REPORT: TOTAL