mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-30 02:32:08 +00:00
bf9b221c00
phi cycles. Adjust a few tests to keep dead instructions from being optimized away. This (together with my previous change for phi cycles) fixes Apple radar 7627077. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96057 91177308-0d34-0410-b5e6-96231b3b80d8
36 lines
1.2 KiB
LLVM
36 lines
1.2 KiB
LLVM
; RUN: llc < %s -march=x86 -mattr=+sse2 -pre-alloc-split -stats |& \
|
|
; RUN: grep {pre-alloc-split} | grep {Number of intervals split} | grep 1
|
|
|
|
@current_surfaces.b = external global i1 ; <i1*> [#uses=1]
|
|
|
|
declare double @asin(double) nounwind readonly
|
|
|
|
declare double @tan(double) nounwind readonly
|
|
|
|
define fastcc void @trace_line(i32 %line) nounwind {
|
|
entry:
|
|
%.b3 = load i1* @current_surfaces.b ; <i1> [#uses=1]
|
|
br i1 %.b3, label %bb, label %return
|
|
|
|
bb: ; preds = %bb9.i, %entry
|
|
%.rle4 = phi double [ %7, %bb9.i ], [ 0.000000e+00, %entry ] ; <double> [#uses=1]
|
|
%0 = load double* null, align 8 ; <double> [#uses=3]
|
|
%1 = fcmp une double %0, 0.000000e+00 ; <i1> [#uses=1]
|
|
br i1 %1, label %bb9.i, label %bb13.i
|
|
|
|
bb9.i: ; preds = %bb
|
|
%2 = fsub double %.rle4, %0 ; <double> [#uses=0]
|
|
%3 = tail call double @asin(double %.rle4) nounwind readonly ; <double> [#uses=0]
|
|
%4 = fmul double 0.000000e+00, %0 ; <double> [#uses=1]
|
|
%5 = tail call double @tan(double 0.000000e+00) nounwind readonly ; <double> [#uses=0]
|
|
%6 = fmul double %4, 0.000000e+00 ; <double> [#uses=1]
|
|
%7 = fadd double %6, 0.000000e+00 ; <double> [#uses=1]
|
|
br i1 false, label %return, label %bb
|
|
|
|
bb13.i: ; preds = %bb
|
|
unreachable
|
|
|
|
return: ; preds = %bb9.i, %entry
|
|
ret void
|
|
}
|