[opaque pointer type] Add textual IR support for explicit type parameter to the call instruction

See r230786 and r230794 for similar changes to gep and load
respectively.

Call is a bit different because it often doesn't have a single explicit
type - usually the type is deduced from the arguments, and just the
return type is explicit. In those cases there's no need to change the
IR.

When that's not the case, the IR usually contains the pointer type of
the first operand - but since typed pointers are going away, that
representation is insufficient so I'm just stripping the "pointerness"
of the explicit type away.

This does make the IR a bit weird - it /sort of/ reads like the type of
the first operand: "call void () %x(" but %x is actually of type "void
()*" and will eventually be just of type "ptr". But this seems not too
bad and I don't think it would benefit from repeating the type
("void (), void () * %x(" and then eventually "void (), ptr %x(") as has
been done with gep and load.

This also has a side benefit: since the explicit type is no longer a
pointer, there's no ambiguity between an explicit type and a function
that returns a function pointer. Previously this case needed an explicit
type (eg: a function returning a void() function was written as
"call void () () * @x(" rather than "call void () * @x(" because of the
ambiguity between a function returning a pointer to a void() function
and a function returning void).

No ambiguity means even function pointer return types can just be
written alone, without writing the whole function's type.

This leaves /only/ the varargs case where the explicit type is required.

Given the special type syntax in call instructions, the regex-fu used
for migration was a bit more involved in its own unique way (as every
one of these is) so here it is. Use it in conjunction with the apply.sh
script and associated find/xargs commands I've provided in rr230786 to
migrate your out of tree tests. Do let me know if any of this doesn't
cover your cases & we can iterate on a more general script/regexes to
help others with out of tree tests.

About 9 test cases couldn't be automatically migrated - half of those
were functions returning function pointers, where I just had to manually
delete the function argument types now that we didn't need an explicit
function type there. The other half were typedefs of function types used
in calls - just had to manually drop the * from those.

import fileinput
import sys
import re

pat = re.compile(r'((?:=|:|^|\s)call\s(?:[^@]*?))(\s*$|\s*(?:(?:\[\[[a-zA-Z0-9_]+\]\]|[@%](?:(")?[\\\?@a-zA-Z0-9_.]*?(?(3)"|)|{{.*}}))(?:\(|$)|undef|inttoptr|bitcast|null|asm).*$)')
addrspace_end = re.compile(r"addrspace\(\d+\)\s*\*$")
func_end = re.compile("(?:void.*|\)\s*)\*$")

def conv(match, line):
  if not match or re.search(addrspace_end, match.group(1)) or not re.search(func_end, match.group(1)):
    return line
  return line[:match.start()] + match.group(1)[:match.group(1).rfind('*')].rstrip() + match.group(2) + line[match.end():]

for line in sys.stdin:
  sys.stdout.write(conv(re.search(pat, line), line))

llvm-svn: 235145

3 files changed, 15 insertions, 15 deletions

diff --git a/llvm/test/CodeGen/Mips/cconv/arguments-varargs-small-structs-byte.ll b/llvm/test/CodeGen/Mips/cconv/arguments-varargs-small-structs-byte.ll
index abb36011f89..ba3aeb598f5 100644
--- a/llvm/test/CodeGen/Mips/cconv/arguments-varargs-small-structs-byte.ll
+++ b/llvm/test/CodeGen/Mips/cconv/arguments-varargs-small-structs-byte.ll
@@ -144,7 +144,7 @@ entry:
   %1 = bitcast %struct.SmallStruct_1b* %0 to { i8 }*
   %2 = getelementptr { i8 }, { i8 }* %1, i32 0, i32 0
   %3 = load i8, i8* %2, align 1
-  call void (i8*, ...)* @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i8 inreg %3)
+  call void (i8*, ...) @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i8 inreg %3)
   ret void
  ; CHECK-LABEL: smallStruct_1b: 
  ; CHECK: dsll $[[R1:[0-9]+]], $[[R2:[0-9]+]], 56
@@ -158,7 +158,7 @@ entry:
   %1 = bitcast %struct.SmallStruct_2b* %0 to { i16 }*
   %2 = getelementptr { i16 }, { i16 }* %1, i32 0, i32 0
   %3 = load i16, i16* %2, align 1
-  call void (i8*, ...)* @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i16 inreg %3)
+  call void (i8*, ...) @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i16 inreg %3)
   ret void
  ; CHECK-LABEL: smallStruct_2b:
  ; CHECK: dsll $[[R1:[0-9]+]], $[[R2:[0-9]+]], 48
@@ -175,7 +175,7 @@ entry:
   call void @llvm.memcpy.p0i8.p0i8.i64(i8* %1, i8* %2, i64 3, i32 0, i1 false)
   %3 = getelementptr { i24 }, { i24 }* %.coerce, i32 0, i32 0
   %4 = load i24, i24* %3, align 1
-  call void (i8*, ...)* @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i24 inreg %4)
+  call void (i8*, ...) @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i24 inreg %4)
   ret void
  ; CHECK-LABEL: smallStruct_3b:
  ; CHECK: dsll $[[R1:[0-9]+]], $[[R2:[0-9]+]], 40
@@ -191,7 +191,7 @@ entry:
   %1 = bitcast %struct.SmallStruct_4b* %0 to { i32 }*
   %2 = getelementptr { i32 }, { i32 }* %1, i32 0, i32 0
   %3 = load i32, i32* %2, align 1
-  call void (i8*, ...)* @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i32 inreg %3)
+  call void (i8*, ...) @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i32 inreg %3)
   ret void
  ; CHECK-LABEL: smallStruct_4b:
  ; CHECK: dsll $[[R1:[0-9]+]], $[[R2:[0-9]+]], 32
@@ -208,7 +208,7 @@ entry:
   call void @llvm.memcpy.p0i8.p0i8.i64(i8* %1, i8* %2, i64 5, i32 0, i1 false)
   %3 = getelementptr { i40 }, { i40 }* %.coerce, i32 0, i32 0
   %4 = load i40, i40* %3, align 1
-  call void (i8*, ...)* @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i40 inreg %4)
+  call void (i8*, ...) @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i40 inreg %4)
   ret void
  ; CHECK-LABEL: smallStruct_5b:
  ; CHECK: dsll $[[R1:[0-9]+]], $[[R2:[0-9]+]], 24
@@ -225,7 +225,7 @@ entry:
   call void @llvm.memcpy.p0i8.p0i8.i64(i8* %1, i8* %2, i64 6, i32 0, i1 false)
   %3 = getelementptr { i48 }, { i48 }* %.coerce, i32 0, i32 0
   %4 = load i48, i48* %3, align 1
-  call void (i8*, ...)* @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i48 inreg %4)
+  call void (i8*, ...) @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i48 inreg %4)
   ret void
  ; CHECK-LABEL: smallStruct_6b:
  ; CHECK: dsll $[[R1:[0-9]+]], $[[R2:[0-9]+]], 16
@@ -242,7 +242,7 @@ entry:
   call void @llvm.memcpy.p0i8.p0i8.i64(i8* %1, i8* %2, i64 7, i32 0, i1 false)
   %3 = getelementptr { i56 }, { i56 }* %.coerce, i32 0, i32 0
   %4 = load i56, i56* %3, align 1
-  call void (i8*, ...)* @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i56 inreg %4)
+  call void (i8*, ...) @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i56 inreg %4)
   ret void
  ; CHECK-LABEL: smallStruct_7b:
  ; CHECK: dsll $[[R1:[0-9]+]], $[[R2:[0-9]+]], 8
@@ -256,7 +256,7 @@ entry:
   %1 = bitcast %struct.SmallStruct_8b* %0 to { i64 }*
   %2 = getelementptr { i64 }, { i64 }* %1, i32 0, i32 0
   %3 = load i64, i64* %2, align 1
-  call void (i8*, ...)* @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i64 inreg %3)
+  call void (i8*, ...) @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i64 inreg %3)
   ret void
  ; CHECK-LABEL: smallStruct_8b:
  ; CHECK-NOT: dsll
@@ -275,7 +275,7 @@ entry:
   %4 = load i64, i64* %3, align 1
   %5 = getelementptr { i64, i8 }, { i64, i8 }* %.coerce, i32 0, i32 1
   %6 = load i8, i8* %5, align 1
-  call void (i8*, ...)* @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i64 inreg %4, i8 inreg %6)
+  call void (i8*, ...) @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i64 inreg %4, i8 inreg %6)
   ret void
  ; CHECK-LABEL: smallStruct_9b:
  ; CHECK: dsll $[[R1:[0-9]+]], $[[R2:[0-9]+]], 56
diff --git a/llvm/test/CodeGen/Mips/cconv/arguments-varargs-small-structs-combinations.ll b/llvm/test/CodeGen/Mips/cconv/arguments-varargs-small-structs-combinations.ll
index 7da6ab1f749..74d3d859ed7 100644
--- a/llvm/test/CodeGen/Mips/cconv/arguments-varargs-small-structs-combinations.ll
+++ b/llvm/test/CodeGen/Mips/cconv/arguments-varargs-small-structs-combinations.ll
@@ -78,7 +78,7 @@ entry:
   %1 = bitcast %struct.SmallStruct_1b1s* %0 to { i32 }*
   %2 = getelementptr { i32 }, { i32 }* %1, i32 0, i32 0
   %3 = load i32, i32* %2, align 1
-  call void (i8*, ...)* @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i32 inreg %3)
+  call void (i8*, ...) @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i32 inreg %3)
   ret void
  ; CHECK-LABEL: smallStruct_1b1s:
  ; CHECK: dsll $[[R1:[0-9]+]], $[[R2:[0-9]+]], 32
@@ -92,7 +92,7 @@ entry:
   %1 = bitcast %struct.SmallStruct_1b1i* %0 to { i64 }*
   %2 = getelementptr { i64 }, { i64 }* %1, i32 0, i32 0
   %3 = load i64, i64* %2, align 1
-  call void (i8*, ...)* @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i64 inreg %3)
+  call void (i8*, ...) @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i64 inreg %3)
   ret void
  ; CHECK-LABEL: smallStruct_1b1i:
  ; CHECK-NOT: dsll
@@ -109,7 +109,7 @@ entry:
   call void @llvm.memcpy.p0i8.p0i8.i64(i8* %1, i8* %2, i64 6, i32 0, i1 false)
   %3 = getelementptr { i48 }, { i48 }* %.coerce, i32 0, i32 0
   %4 = load i48, i48* %3, align 1
-  call void (i8*, ...)* @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i48 inreg %4)
+  call void (i8*, ...) @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i48 inreg %4)
   ret void
  ; CHECK-LABEL: smallStruct_1b1s1b:
  ; CHECK: dsll $[[R1:[0-9]+]], $[[R2:[0-9]+]], 16
@@ -125,7 +125,7 @@ entry:
   %1 = bitcast %struct.SmallStruct_1s1i* %0 to { i64 }*
   %2 = getelementptr { i64 }, { i64 }* %1, i32 0, i32 0
   %3 = load i64, i64* %2, align 1
-  call void (i8*, ...)* @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i64 inreg %3)
+  call void (i8*, ...) @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i64 inreg %3)
   ret void
  ; CHECK-LABEL: smallStruct_1s1i:
  ; CHECK-NOT: dsll
@@ -142,7 +142,7 @@ entry:
   call void @llvm.memcpy.p0i8.p0i8.i64(i8* %1, i8* %2, i64 6, i32 0, i1 false)
   %3 = getelementptr { i48 }, { i48 }* %.coerce, i32 0, i32 0
   %4 = load i48, i48* %3, align 1
-  call void (i8*, ...)* @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i48 inreg %4)
+  call void (i8*, ...) @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i48 inreg %4)
   ret void
  ; CHECK-LABEL: smallStruct_3b1s:
  ; CHECK: dsll $[[R1:[0-9]+]], $[[R2:[0-9]+]], 16
diff --git a/llvm/test/CodeGen/Mips/cconv/arguments-varargs-small-structs-multiple-args.ll b/llvm/test/CodeGen/Mips/cconv/arguments-varargs-small-structs-multiple-args.ll
index f70b75f128b..a4ac5e7bd8a 100644
--- a/llvm/test/CodeGen/Mips/cconv/arguments-varargs-small-structs-multiple-args.ll
+++ b/llvm/test/CodeGen/Mips/cconv/arguments-varargs-small-structs-multiple-args.ll
@@ -146,7 +146,7 @@ entry:
   %33 = bitcast %struct.SmallStruct_1b* %8 to { i8 }*
   %34 = getelementptr { i8 }, { i8 }* %33, i32 0, i32 0
   %35 = load i8, i8* %34, align 1
-  call void (i8*, ...)* @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i8 inreg %11, i8 inreg %14, i8 inreg %17, i8 inreg %20, i8 inreg %23, i8 inreg %26, i8 inreg %29, i8 inreg %32, i8 inreg %35)
+  call void (i8*, ...) @varArgF_SmallStruct(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i8 inreg %11, i8 inreg %14, i8 inreg %17, i8 inreg %20, i8 inreg %23, i8 inreg %26, i8 inreg %29, i8 inreg %32, i8 inreg %35)
   ret void
  ; CHECK-LABEL: smallStruct_1b_x9:
  ; CHECK: dsll $[[R1:[0-9]+]], $[[R2:[0-9]+]], 56