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88f55b45b2
Some BBs can become dead after codegen preparation. If we delete them here, it could help enable tail-call optimizations later on. <rdar://problem/10256573> llvm-svn: 152002
31 lines
1.1 KiB
LLVM
31 lines
1.1 KiB
LLVM
; RUN: llc < %s -march=arm | grep {bl.\*__ltdf} | count 1
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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-f80:128:128"
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target triple = "i386-apple-darwin8"
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; Without CSE of libcalls, there are two calls in the output instead of one.
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define double @u_f_nonbon(double %lambda) nounwind {
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entry:
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%tmp19.i.i = load double* null, align 4 ; <double> [#uses=2]
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%tmp6.i = fcmp olt double %tmp19.i.i, 1.000000e+00 ; <i1> [#uses=1]
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%dielectric.0.i = select i1 %tmp6.i, double 1.000000e+00, double %tmp19.i.i ; <double> [#uses=1]
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%tmp10.i4 = fdiv double 0x4074C2D71F36262D, %dielectric.0.i ; <double> [#uses=1]
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br i1 false, label %bb28.i, label %bb508.i
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bb28.i: ; preds = %bb28.i, %entry
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br i1 false, label %bb502.loopexit.i, label %bb28.i
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bb.nph53.i: ; preds = %bb502.loopexit.i
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%tmp354.i = fsub double -0.000000e+00, %tmp10.i4 ; <double> [#uses=0]
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br label %bb244.i
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bb244.i: ; preds = %bb244.i, %bb.nph53.i
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br label %bb244.i
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bb502.loopexit.i: ; preds = %bb28.i
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br i1 false, label %bb.nph53.i, label %bb508.i
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bb508.i: ; preds = %bb502.loopexit.i, %entry
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ret double %tmp10.i4
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}
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