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https://github.com/RPCS3/llvm-mirror.git
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6dcbcbb6e8
This is a partial revert of r244615 (http://reviews.llvm.org/D11942), which caused a major regression in debug info quality. Turning the artificial __MergedGlobal symbols into private symbols (l__MergedGlobal) means that the linker will not include them in the symbol table of the final executable. Without a symbol table entry dsymutil is not be able to process the debug info for any of the merged globals and thus drops the debug info for all of them. This patch is enabling the old behavior for all MachO targets while leaving all other targets unaffected. rdar://problem/29160481 https://reviews.llvm.org/D26531 llvm-svn: 286607
89 lines
5.2 KiB
LLVM
89 lines
5.2 KiB
LLVM
; RUN: llc %s -O0 -o - | FileCheck -check-prefix=NO-MERGE %s
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; RUN: llc %s -O0 -o - -arm-global-merge=false | FileCheck -check-prefix=NO-MERGE %s
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; RUN: llc %s -O0 -o - -arm-global-merge=true | FileCheck -check-prefix=MERGE %s
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; RUN: llc %s -O1 -o - | FileCheck -check-prefix=NO-MERGE %s
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; RUN: llc %s -O1 -o - -arm-global-merge=false | FileCheck -check-prefix=NO-MERGE %s
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; RUN: llc %s -O1 -o - -arm-global-merge=true | FileCheck -check-prefix=MERGE %s
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; RUN: llc %s -O3 -o - | FileCheck -check-prefix=MERGE %s
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; RUN: llc %s -O3 -o - -arm-global-merge=false | FileCheck -check-prefix=NO-MERGE %s
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; RUN: llc %s -O3 -o - -arm-global-merge=true | FileCheck -check-prefix=MERGE %s
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; MERGE-NOT: .zerofill __DATA,__bss,_bar,20,2
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; MERGE-NOT: .zerofill __DATA,__bss,_baz,20,2
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; MERGE-NOT: .zerofill __DATA,__bss,_foo,20,2
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; MERGE: .zerofill __DATA,__bss,__MergedGlobals,60,4
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; MERGE-NOT: .zerofill __DATA,__bss,_bar,20,2
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; MERGE-NOT: .zerofill __DATA,__bss,_baz,20,2
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; MERGE-NOT: .zerofill __DATA,__bss,_foo,20,2
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; NO-MERGE-NOT: .zerofill __DATA,__bss,__MergedGlobals,60,4
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; NO-MERGE: .zerofill __DATA,__bss,_bar,20,2
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; NO-MERGE: .zerofill __DATA,__bss,_baz,20,2
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; NO-MERGE: .zerofill __DATA,__bss,_foo,20,2
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; NO-MERGE-NOT: .zerofill __DATA,__bss,__MergedGlobals,60,4
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target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:32:64-v128:32:128-a0:0:32-n32-S32"
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target triple = "thumbv7-apple-ios3.0.0"
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@bar = internal global [5 x i32] zeroinitializer, align 4
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@baz = internal global [5 x i32] zeroinitializer, align 4
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@foo = internal global [5 x i32] zeroinitializer, align 4
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; Function Attrs: nounwind ssp
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define internal void @initialize() #0 {
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%1 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3
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store i32 %1, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @bar, i32 0, i32 0), align 4, !tbaa !1
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%2 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3
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store i32 %2, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @baz, i32 0, i32 0), align 4, !tbaa !1
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%3 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3
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store i32 %3, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @bar, i32 0, i32 1), align 4, !tbaa !1
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%4 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3
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store i32 %4, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @baz, i32 0, i32 1), align 4, !tbaa !1
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%5 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3
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store i32 %5, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @bar, i32 0, i32 2), align 4, !tbaa !1
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%6 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3
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store i32 %6, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @baz, i32 0, i32 2), align 4, !tbaa !1
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%7 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3
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store i32 %7, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @bar, i32 0, i32 3), align 4, !tbaa !1
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%8 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3
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store i32 %8, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @baz, i32 0, i32 3), align 4, !tbaa !1
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%9 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3
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store i32 %9, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @bar, i32 0, i32 4), align 4, !tbaa !1
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%10 = tail call i32 bitcast (i32 (...)* @calc to i32 ()*)() #3
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store i32 %10, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @baz, i32 0, i32 4), align 4, !tbaa !1
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ret void
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}
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declare i32 @calc(...) #1
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; Function Attrs: nounwind ssp
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define internal void @calculate() #0 {
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%1 = load <4 x i32>, <4 x i32>* bitcast ([5 x i32]* @bar to <4 x i32>*), align 4
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%2 = load <4 x i32>, <4 x i32>* bitcast ([5 x i32]* @baz to <4 x i32>*), align 4
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%3 = mul <4 x i32> %2, %1
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store <4 x i32> %3, <4 x i32>* bitcast ([5 x i32]* @foo to <4 x i32>*), align 4
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%4 = load i32, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @bar, i32 0, i32 4), align 4, !tbaa !1
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%5 = load i32, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @baz, i32 0, i32 4), align 4, !tbaa !1
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%6 = mul nsw i32 %5, %4
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store i32 %6, i32* getelementptr inbounds ([5 x i32], [5 x i32]* @foo, i32 0, i32 4), align 4, !tbaa !1
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ret void
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}
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; Function Attrs: nounwind readnone ssp
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define internal i32* @returnFoo() #2 {
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ret i32* getelementptr inbounds ([5 x i32], [5 x i32]* @foo, i32 0, i32 0)
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}
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attributes #0 = { nounwind ssp "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #2 = { nounwind readnone ssp "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #3 = { nounwind }
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!llvm.ident = !{!0}
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!0 = !{!"LLVM version 3.4 "}
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!1 = !{!2, !2, i64 0}
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!2 = !{!"int", !3, i64 0}
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!3 = !{!"omnipotent char", !4, i64 0}
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!4 = !{!"Simple C/C++ TBAA"}
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