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dfadb4e9ee
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
106 lines
4.8 KiB
LLVM
106 lines
4.8 KiB
LLVM
; REQUIRES: asserts
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; RUN: llc < %s -march=x86-64 | FileCheck %s --check-prefix=ASM
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; RUN: llc -debug -o /dev/null < %s -march=x86-64 2>&1 | FileCheck %s --check-prefix=DBG
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; rdar://8168938
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; This testcase involves SCEV normalization with the exit value from
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; one loop involved with the increment value for an addrec on another
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; loop. The expression should be properly normalized and simplified,
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; and require only a single division.
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; DBG-NOT: DISCARDING (NORMALIZATION ISN'T INVERTIBLE)
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; ASM: div
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; ASM-NOT: div
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%0 = type { %0*, %0* }
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@0 = private constant [13 x i8] c"Result: %lu\0A\00" ; <[13 x i8]*> [#uses=1]
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@1 = internal constant [5 x i8] c"Huh?\00" ; <[5 x i8]*> [#uses=1]
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define i32 @main(i32 %arg, i8** nocapture %arg1) nounwind {
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bb:
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%tmp = alloca %0, align 8 ; <%0*> [#uses=11]
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%tmp2 = bitcast %0* %tmp to i8* ; <i8*> [#uses=1]
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call void @llvm.memset.p0i8.i64(i8* %tmp2, i8 0, i64 16, i32 8, i1 false) nounwind
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%tmp3 = getelementptr inbounds %0, %0* %tmp, i64 0, i32 0 ; <%0**> [#uses=3]
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store %0* %tmp, %0** %tmp3
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%tmp4 = getelementptr inbounds %0, %0* %tmp, i64 0, i32 1 ; <%0**> [#uses=1]
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store %0* %tmp, %0** %tmp4
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%tmp5 = call noalias i8* @_Znwm(i64 24) nounwind ; <i8*> [#uses=2]
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%tmp6 = getelementptr inbounds i8, i8* %tmp5, i64 16 ; <i8*> [#uses=2]
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%tmp7 = icmp eq i8* %tmp6, null ; <i1> [#uses=1]
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br i1 %tmp7, label %bb10, label %bb8
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bb8: ; preds = %bb
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%tmp9 = bitcast i8* %tmp6 to i32* ; <i32*> [#uses=1]
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store i32 1, i32* %tmp9
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br label %bb10
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bb10: ; preds = %bb8, %bb
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%tmp11 = bitcast i8* %tmp5 to %0* ; <%0*> [#uses=1]
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call void @_ZNSt15_List_node_base4hookEPS_(%0* %tmp11, %0* %tmp) nounwind
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%tmp12 = load %0*, %0** %tmp3 ; <%0*> [#uses=3]
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%tmp13 = icmp eq %0* %tmp12, %tmp ; <i1> [#uses=1]
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br i1 %tmp13, label %bb14, label %bb16
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bb14: ; preds = %bb10
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%tmp15 = call i32 @puts(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @1, i64 0, i64 0))
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br label %bb35
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bb16: ; preds = %bb16, %bb10
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%tmp17 = phi i64 [ %tmp22, %bb16 ], [ 0, %bb10 ] ; <i64> [#uses=1]
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%tmp18 = phi %0* [ %tmp20, %bb16 ], [ %tmp12, %bb10 ] ; <%0*> [#uses=1]
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%tmp19 = getelementptr inbounds %0, %0* %tmp18, i64 0, i32 0 ; <%0**> [#uses=1]
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%tmp20 = load %0*, %0** %tmp19 ; <%0*> [#uses=2]
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%tmp21 = icmp eq %0* %tmp20, %tmp ; <i1> [#uses=1]
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%tmp22 = add i64 %tmp17, 1 ; <i64> [#uses=2]
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br i1 %tmp21, label %bb23, label %bb16
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bb23: ; preds = %bb16
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%tmp24 = udiv i64 100, %tmp22 ; <i64> [#uses=1]
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br label %bb25
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bb25: ; preds = %bb25, %bb23
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%tmp26 = phi i64 [ %tmp31, %bb25 ], [ 0, %bb23 ] ; <i64> [#uses=1]
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%tmp27 = phi %0* [ %tmp29, %bb25 ], [ %tmp12, %bb23 ] ; <%0*> [#uses=1]
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%tmp28 = getelementptr inbounds %0, %0* %tmp27, i64 0, i32 0 ; <%0**> [#uses=1]
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%tmp29 = load %0*, %0** %tmp28 ; <%0*> [#uses=2]
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%tmp30 = icmp eq %0* %tmp29, %tmp ; <i1> [#uses=1]
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%tmp31 = add i64 %tmp26, 1 ; <i64> [#uses=2]
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br i1 %tmp30, label %bb32, label %bb25
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bb32: ; preds = %bb25
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%tmp33 = mul i64 %tmp31, %tmp24 ; <i64> [#uses=1]
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%tmp34 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @0, i64 0, i64 0), i64 %tmp33) nounwind
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br label %bb35
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bb35: ; preds = %bb32, %bb14
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%tmp36 = load %0*, %0** %tmp3 ; <%0*> [#uses=2]
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%tmp37 = icmp eq %0* %tmp36, %tmp ; <i1> [#uses=1]
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br i1 %tmp37, label %bb44, label %bb38
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bb38: ; preds = %bb38, %bb35
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%tmp39 = phi %0* [ %tmp41, %bb38 ], [ %tmp36, %bb35 ] ; <%0*> [#uses=2]
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%tmp40 = getelementptr inbounds %0, %0* %tmp39, i64 0, i32 0 ; <%0**> [#uses=1]
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%tmp41 = load %0*, %0** %tmp40 ; <%0*> [#uses=2]
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%tmp42 = bitcast %0* %tmp39 to i8* ; <i8*> [#uses=1]
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call void @_ZdlPv(i8* %tmp42) nounwind
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%tmp43 = icmp eq %0* %tmp41, %tmp ; <i1> [#uses=1]
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br i1 %tmp43, label %bb44, label %bb38
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bb44: ; preds = %bb38, %bb35
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ret i32 0
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}
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declare i32 @printf(i8* nocapture, ...) nounwind
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declare void @_ZNSt15_List_node_base4hookEPS_(%0*, %0*)
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declare noalias i8* @_Znwm(i64)
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declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) nounwind
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declare void @_ZdlPv(i8*) nounwind
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declare i32 @puts(i8* nocapture) nounwind
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