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llvm-6502/test/CodeGen/ARM/indirectbr-2.ll

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When a block ends in an indirect branch, add its successors to the machine basic block. The CFG of the machine function needs to know that the targets of the indirect branch are successors to the indirect branch. <rdar://problem/12529625> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166448 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-22 23:30:04 +00:00
; RUN: llc < %s -O0 -relocation-model=pic -mtriple=thumbv7-apple-ios | FileCheck %s
; <rdar://problem/12529625>
@foo = global i32 34879, align 4
@DWJumpTable2808 = global [2 x i32] [i32 sub (i32 ptrtoint (i8* blockaddress(@func, %14) to i32), i32 ptrtoint (i8* blockaddress(@func, %4) to i32)), i32 sub (i32 ptrtoint (i8* blockaddress(@func, %13) to i32), i32 ptrtoint (i8* blockaddress(@func, %4) to i32))]
@0 = internal constant [45 x i8] c"func XXXXXXXXXXX :: bb xxxxxxxxxxxxxxxxxxxx\0A\00"
; The indirect branch has the two destinations as successors. The lone PHI
; statement shouldn't be implicitly defined.
Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally. This update was done with the following bash script: find test/CodeGen -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc.*debug" $NAME; then TEMP=`mktemp -t temp` cp $NAME $TEMP sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \ while read FUNC; do sed -i '' "s/;\(.*\)\([A-Za-z0-9_-]*\):\( *\)$FUNC: *\$/;\1\2-LABEL:\3$FUNC:/g" $TEMP done sed -i '' "s/;\(.*\)-LABEL-LABEL:/;\1-LABEL:/" $TEMP sed -i '' "s/;\(.*\)-NEXT-LABEL:/;\1-NEXT:/" $TEMP sed -i '' "s/;\(.*\)-NOT-LABEL:/;\1-NOT:/" $TEMP sed -i '' "s/;\(.*\)-DAG-LABEL:/;\1-DAG:/" $TEMP mv $TEMP $NAME fi done git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186280 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-14 06:24:09 +00:00
; CHECK-LABEL: func:
Replace PROLOG_LABEL with a new CFI_INSTRUCTION. The old system was fairly convoluted: * A temporary label was created. * A single PROLOG_LABEL was created with it. * A few MCCFIInstructions were created with the same label. The semantics were that the cfi instructions were mapped to the PROLOG_LABEL via the temporary label. The output position was that of the PROLOG_LABEL. The temporary label itself was used only for doing the mapping. The new CFI_INSTRUCTION has a 1:1 mapping to MCCFIInstructions and points to one by holding an index into the CFI instructions of this function. I did consider removing MMI.getFrameInstructions completelly and having CFI_INSTRUCTION own a MCCFIInstruction, but MCCFIInstructions have non trivial constructors and destructors and are somewhat big, so the this setup is probably better. The net result is that we don't create temporary labels that are never used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203204 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-07 06:08:31 +00:00
; CHECK: Ltmp1: @ Block address taken
When a block ends in an indirect branch, add its successors to the machine basic block. The CFG of the machine function needs to know that the targets of the indirect branch are successors to the indirect branch. <rdar://problem/12529625> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166448 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-22 23:30:04 +00:00
; CHECK-NOT: @ implicit-def: R0
; CHECK: @ 4-byte Reload
define i32 @func() nounwind ssp {
%1 = alloca i32, align 4
%2 = load i32* @foo, align 4
%3 = icmp eq i32 %2, 34879
br label %4
; <label>:4 ; preds = %0
%5 = zext i1 %3 to i32
%6 = mul i32 %5, 287
%7 = add i32 %6, 2
%8 = getelementptr [2 x i32]* @DWJumpTable2808, i32 0, i32 %5
%9 = load i32* %8
%10 = add i32 %9, ptrtoint (i8* blockaddress(@func, %4) to i32)
%11 = inttoptr i32 %10 to i8*
%12 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([45 x i8]* @0, i32 0, i32 0))
indirectbr i8* %11, [label %13, label %14]
; <label>:13 ; preds = %4
%tmp14 = phi i32 [ %7, %4 ]
store i32 23958, i32* @foo, align 4
%tmp15 = load i32* %1, align 4
%tmp16 = icmp eq i32 %tmp15, 0
%tmp17 = zext i1 %tmp16 to i32
%tmp21 = add i32 %tmp17, %tmp14
ret i32 %tmp21
; <label>:14 ; preds = %4
ret i32 42
}
declare i32 @printf(i8*, ...)
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