llvm/test/CodeGen/X86/no-compact-unwind.ll
2013-09-11 19:06:04 +00:00

65 lines
2.9 KiB
LLVM

; RUN: llc < %s -mtriple x86_64-apple-macosx10.8.0 -mcpu corei7 -filetype=obj -o - \
; RUN: | llvm-objdump -triple x86_64-apple-macosx10.8.0 -s - \
; RUN: | FileCheck -check-prefix=CU %s
; RUN: llc < %s -mtriple x86_64-apple-darwin11 -mcpu corei7 \
; RUN: | llvm-mc -triple x86_64-apple-darwin11 -filetype=obj -o - \
; RUN: | llvm-objdump -triple x86_64-apple-darwin11 -s - \
; RUN: | FileCheck -check-prefix=FROM-ASM %s
%"struct.dyld::MappedRanges" = type { [400 x %struct.anon], %"struct.dyld::MappedRanges"* }
%struct.anon = type { %class.ImageLoader*, i64, i64 }
%class.ImageLoader = type { i32 (...)**, i8*, i8*, i32, i64, i64, i32, i32, %"struct.ImageLoader::recursive_lock"*, i16, i16, [4 x i8] }
%"struct.ImageLoader::recursive_lock" = type { i32, i32 }
@G1 = external hidden global %"struct.dyld::MappedRanges", align 8
declare void @OSMemoryBarrier() optsize
; This compact unwind encoding indicates that we could not generate correct
; compact unwind encodings for this function. This then defaults to using the
; DWARF EH frame.
; CU: Contents of section __compact_unwind:
; CU-NEXT: 0048 00000000 00000000 42000000 00000004
; CU-NEXT: 0058 00000000 00000000 00000000 00000000
; FROM-ASM: Contents of section __compact_unwind:
; FROM-ASM-NEXT: 0048 00000000 00000000 42000000 00000004
; FROM-ASM-NEXT: 0058 00000000 00000000 00000000 00000000
define void @func(%class.ImageLoader* %image) optsize ssp uwtable {
entry:
br label %for.cond1.preheader
for.cond1.preheader: ; preds = %for.inc10, %entry
%p.019 = phi %"struct.dyld::MappedRanges"* [ @G1, %entry ], [ %1, %for.inc10 ]
br label %for.body3
for.body3: ; preds = %for.inc, %for.cond1.preheader
%indvars.iv = phi i64 [ 0, %for.cond1.preheader ], [ %indvars.iv.next, %for.inc ]
%image4 = getelementptr inbounds %"struct.dyld::MappedRanges"* %p.019, i64 0, i32 0, i64 %indvars.iv, i32 0
%0 = load %class.ImageLoader** %image4, align 8
%cmp5 = icmp eq %class.ImageLoader* %0, %image
br i1 %cmp5, label %if.then, label %for.inc
if.then: ; preds = %for.body3
tail call void @OSMemoryBarrier() optsize
store %class.ImageLoader* null, %class.ImageLoader** %image4, align 8
br label %for.inc
for.inc: ; preds = %if.then, %for.body3
%indvars.iv.next = add i64 %indvars.iv, 1
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
%exitcond = icmp eq i32 %lftr.wideiv, 400
br i1 %exitcond, label %for.inc10, label %for.body3
for.inc10: ; preds = %for.inc
%next = getelementptr inbounds %"struct.dyld::MappedRanges"* %p.019, i64 0, i32 1
%1 = load %"struct.dyld::MappedRanges"** %next, align 8
%cmp = icmp eq %"struct.dyld::MappedRanges"* %1, null
br i1 %cmp, label %for.end11, label %for.cond1.preheader
for.end11: ; preds = %for.inc10
ret void
}