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6d31268a7d
to break up CFG diamonds by banishing one of the blocks to the end of the function, which is bad for code density and branch size. This does pessimize MultiSource/Benchmarks/Ptrdist/yacr2, the benchmark cited as the reason for the change, however I've examined the code and it looks more like a case of gaming a particular branch than of being generally applicable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84803 91177308-0d34-0410-b5e6-96231b3b80d8
32 lines
921 B
LLVM
32 lines
921 B
LLVM
; RUN: llc < %s -march=cellspu -o - | grep brnz
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; PR3274
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target datalayout = "E-p:32:32:128-i1:8:128-i8:8:128-i16:16:128-i32:32:128-i64:32:128-f32:32:128-f64:64:128-v64:64:64-v128:128:128-a0:0:128-s0:128:128"
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target triple = "spu"
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%struct.anon = type { i64 }
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%struct.fp_number_type = type { i32, i32, i32, [4 x i8], %struct.anon }
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define double @__floatunsidf(i32 %arg_a) nounwind {
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entry:
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%in = alloca %struct.fp_number_type, align 16
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%0 = getelementptr %struct.fp_number_type* %in, i32 0, i32 1
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store i32 0, i32* %0, align 4
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%1 = icmp eq i32 %arg_a, 0
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%2 = getelementptr %struct.fp_number_type* %in, i32 0, i32 0
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br i1 %1, label %bb, label %bb1
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bb: ; preds = %entry
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store i32 2, i32* %2, align 8
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br label %bb7
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bb1: ; preds = %entry
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ret double 0.0
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bb7: ; preds = %bb5, %bb1, %bb
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ret double 1.0
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}
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; declare i32 @llvm.ctlz.i32(i32) nounwind readnone
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declare double @__pack_d(%struct.fp_number_type*)
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