mirror of
https://github.com/c64scene-ar/llvm-6502.git
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00a99a3584
only run for x86 with fastisel. I've found it being very effective in eliminating some obvious dead code as result of formal parameter lowering especially when tail call optimization eliminated the need for some of the loads from fixed frame objects. It also shrinks a number of the tests. A couple of tests no longer make sense and are now eliminated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95493 91177308-0d34-0410-b5e6-96231b3b80d8
66 lines
3.0 KiB
LLVM
66 lines
3.0 KiB
LLVM
; RUN: llc < %s -march=arm -mattr=+v6,+vfp2 -stats -info-output-file - | grep "Number of re-materialization"
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define arm_apcscc i32 @main(i32 %argc, i8** nocapture %argv, double %d1, double %d2) nounwind {
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entry:
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br i1 undef, label %smvp.exit, label %bb.i3
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bb.i3: ; preds = %bb.i3, %bb134
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br i1 undef, label %smvp.exit, label %bb.i3
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smvp.exit: ; preds = %bb.i3
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%0 = fmul double %d1, 2.400000e-03 ; <double> [#uses=2]
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br i1 undef, label %bb138.preheader, label %bb159
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bb138.preheader: ; preds = %smvp.exit
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br label %bb138
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bb138: ; preds = %bb138, %bb138.preheader
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br i1 undef, label %bb138, label %bb145.loopexit
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bb142: ; preds = %bb.nph218.bb.nph218.split_crit_edge, %phi0.exit
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%1 = fmul double %d1, -1.200000e-03 ; <double> [#uses=1]
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%2 = fadd double %d2, %1 ; <double> [#uses=1]
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%3 = fmul double %2, %d2 ; <double> [#uses=1]
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%4 = fsub double 0.000000e+00, %3 ; <double> [#uses=1]
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br i1 %14, label %phi1.exit, label %bb.i35
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bb.i35: ; preds = %bb142
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%5 = call arm_apcscc double @sin(double %15) nounwind readonly ; <double> [#uses=1]
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%6 = fmul double %5, 0x4031740AFA84AD8A ; <double> [#uses=1]
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%7 = fsub double 1.000000e+00, undef ; <double> [#uses=1]
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%8 = fdiv double %7, 6.000000e-01 ; <double> [#uses=1]
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br label %phi1.exit
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phi1.exit: ; preds = %bb.i35, %bb142
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%.pn = phi double [ %6, %bb.i35 ], [ 0.000000e+00, %bb142 ] ; <double> [#uses=0]
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%9 = phi double [ %8, %bb.i35 ], [ 0.000000e+00, %bb142 ] ; <double> [#uses=1]
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%10 = fmul double undef, %9 ; <double> [#uses=0]
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br i1 %14, label %phi0.exit, label %bb.i
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bb.i: ; preds = %phi1.exit
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unreachable
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phi0.exit: ; preds = %phi1.exit
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%11 = fsub double %4, undef ; <double> [#uses=1]
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%12 = fadd double 0.000000e+00, %11 ; <double> [#uses=1]
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store double %12, double* undef, align 4
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br label %bb142
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bb145.loopexit: ; preds = %bb138
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br i1 undef, label %bb.nph218.bb.nph218.split_crit_edge, label %bb159
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bb.nph218.bb.nph218.split_crit_edge: ; preds = %bb145.loopexit
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%13 = fmul double %0, 0x401921FB54442D18 ; <double> [#uses=1]
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%14 = fcmp ugt double %0, 6.000000e-01 ; <i1> [#uses=2]
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%15 = fdiv double %13, 6.000000e-01 ; <double> [#uses=1]
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br label %bb142
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bb159: ; preds = %bb145.loopexit, %smvp.exit, %bb134
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unreachable
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bb166: ; preds = %bb127
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unreachable
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}
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declare arm_apcscc double @sin(double) nounwind readonly
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