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This was done through the aid of a terrible Perl creation. I will not paste any of the horrors here. Suffice to say, it require multiple staged rounds of replacements, state carried between, and a few nested-construct-parsing hacks that I'm not proud of. It happens, by luck, to be able to deal with all the TCL-quoting patterns in evidence in the LLVM test suite. If anyone is maintaining large out-of-tree test trees, feel free to poke me and I'll send you the steps I used to convert things, as well as answer any painful questions etc. IRC works best for this type of thing I find. Once converted, switch the LLVM lit config to use ShTests the same as Clang. In addition to being able to delete large amounts of Python code from 'lit', this will also simplify the entire test suite and some of lit's architecture. Finally, the test suite runs 33% faster on Linux now. ;] For my 16-hardware-thread (2x 4-core xeon e5520): 36s -> 24s git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159525 91177308-0d34-0410-b5e6-96231b3b80d8
37 lines
1.4 KiB
LLVM
37 lines
1.4 KiB
LLVM
; RUN: opt < %s -simplifycfg -S | grep "%outval = phi i32 .*mux"
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; PR2540
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; Outval should end up with a select from 0/2, not all constants.
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32"
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target triple = "i386-pc-linux-gnu"
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@g_37 = common global i32 0 ; <i32*> [#uses=1]
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@.str = internal constant [4 x i8] c"%d\0A\00" ; <[4 x i8]*> [#uses=1]
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define i32 @main() nounwind {
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entry:
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%l = load i32* @g_37, align 4 ; <i32> [#uses=1]
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%cmpa = icmp ne i32 %l, 0 ; <i1> [#uses=3]
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br i1 %cmpa, label %func_1.exit, label %mooseblock
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mooseblock: ; preds = %entry
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%cmpb = icmp eq i1 %cmpa, false ; <i1> [#uses=2]
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br i1 %cmpb, label %monkeyblock, label %beeblock
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monkeyblock: ; preds = %monkeyblock, %mooseblock
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br i1 %cmpb, label %cowblock, label %monkeyblock
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beeblock: ; preds = %beeblock, %mooseblock
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br i1 %cmpa, label %cowblock, label %beeblock
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cowblock: ; preds = %beeblock, %monkeyblock
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%cowval = phi i32 [ 2, %beeblock ], [ 0, %monkeyblock ] ; <i32> [#uses=1]
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br label %func_1.exit
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func_1.exit: ; preds = %cowblock, %entry
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%outval = phi i32 [ %cowval, %cowblock ], [ 1, %entry ] ; <i32> [#uses=1]
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%pout = tail call i32 (i8*, ...)* @printf( i8* noalias getelementptr ([4 x i8]* @.str, i32 0, i32 0), i32 %outval ) nounwind ; <i32> [#uses=0]
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ret i32 0
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}
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declare i32 @printf(i8*, ...) nounwind
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