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llvm-6502/test/CodeGen/X86/pr10420.ll

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[patch] Adjust behavior of FDE cross-section relocs for targets that don't support abs-differences. Modern versions of OSX/Darwin's ld (ld64 > 97.17) have an optimisation present that allows the back end to omit relocations (and replace them with an absolute difference) for FDE some text section refs. This patch allows a backend to opt-in to this behaviour by setting "DwarfFDESymbolsUseAbsDiff". At present, this is only enabled for modern x86 OSX ports. test changes by David Fang. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198744 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-08 10:22:54 +00:00
; RUN: llc < %s -mtriple=x86_64-apple-macosx10.7 -disable-cfi | FileCheck --check-prefix=CHECK-64-D11 %s
; RUN: llc < %s -mtriple=x86_64-apple-macosx10.6 -disable-cfi | FileCheck %s
; RUN: llc < %s -mtriple=x86_64-apple-macosx10.5 -disable-cfi | FileCheck --check-prefix=CHECK-64-D89 %s
; RUN: llc < %s -mtriple=i686-apple-macosx10.6 -disable-cfi | FileCheck --check-prefix=CHECK-I686-D10 %s
; RUN: llc < %s -mtriple=i686-apple-macosx10.5 -disable-cfi | FileCheck --check-prefix=CHECK-I686-D89 %s
; RUN: llc < %s -mtriple=i686-apple-macosx10.4 -disable-cfi | FileCheck --check-prefix=CHECK-I686-D89 %s
Assume .cfi_startproc is the first thing in a function. If the function is externally visable, create a local symbol to use in the CFE. If not, use the function label itself. Fixes PR10420. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136716 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 20:24:22 +00:00
define private void @foo() {
ret void
}
define void @bar() {
call void @foo()
ret void;
}
; CHECK: _bar: ## @bar
; CHECK-NEXT: Ltmp2:
; CHECK: Ltmp12:
; CHECK-NEXT: Ltmp13 = L_foo-Ltmp12 ## FDE initial location
; CHECK-NEXT: .quad Ltmp13
; CHECK: Ltmp19:
; CHECK-NEXT: Ltmp20 = Ltmp2-Ltmp19 ## FDE initial location
; CHECK-NEXT: .quad Ltmp20
[patch] Adjust behavior of FDE cross-section relocs for targets that don't support abs-differences. Modern versions of OSX/Darwin's ld (ld64 > 97.17) have an optimisation present that allows the back end to omit relocations (and replace them with an absolute difference) for FDE some text section refs. This patch allows a backend to opt-in to this behaviour by setting "DwarfFDESymbolsUseAbsDiff". At present, this is only enabled for modern x86 OSX ports. test changes by David Fang. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198744 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-08 10:22:54 +00:00
; CHECK-64-D11: Ltmp13:
; CHECK-64-D11-NEXT: Ltmp14 = L_foo-Ltmp13 ## FDE initial location
; CHECK-64-D11-NEXT: .quad Ltmp14
; CHECK-64-D11: Ltmp20:
; CHECK-64-D11-NEXT: Ltmp21 = Ltmp2-Ltmp20 ## FDE initial location
; CHECK-64-D11-NEXT: .quad Ltmp21
; CHECK-64-D89: Ltmp12:
; CHECK-64-D89-NEXT: .quad L_foo-Ltmp12 ## FDE initial location
; CHECK-64-D89-NEXT: Ltmp13 = (Ltmp0-L_foo)-0 ## FDE address range
; CHECK-64-D89-NEXT: .quad Ltmp13
; CHECK-64-D89: Ltmp18:
; CHECK-64-D89-NEXT: .quad Ltmp2-Ltmp18 ## FDE initial location
; CHECK-64-D89-NEXT: Ltmp19 = (Ltmp4-Ltmp2)-0 ## FDE address range
; CHECK-64-D89-NEXT: .quad Ltmp19
; CHECK-I686-D10: Ltmp12:
; CHECK-I686-D10-NEXT: Ltmp13 = L_foo-Ltmp12 ## FDE initial location
; CHECK-I686-D10-NEXT: .long Ltmp13
; CHECK-I686-D10: Ltmp19:
; CHECK-I686-D10-NEXT: Ltmp20 = Ltmp2-Ltmp19 ## FDE initial location
; CHECK-I686-D10-NEXT: .long Ltmp20
; CHECK-I686-D89: Ltmp12:
; CHECK-I686-D89-NEXT: .long L_foo-Ltmp12 ## FDE initial location
; CHECK-I686-D89-NEXT: Ltmp13 = (Ltmp0-L_foo)-0 ## FDE address range
; CHECK-I686-D89-NEXT: .long Ltmp13
; CHECK-I686-D89: Ltmp18:
; CHECK-I686-D89-NEXT: .long Ltmp2-Ltmp18 ## FDE initial location
; CHECK-I686-D89-NEXT: Ltmp19 = (Ltmp4-Ltmp2)-0 ## FDE address range
; CHECK-I686-D89-NEXT: .long Ltmp19
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