1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
; RUN: llvm-as < %s | llc -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 = sub double %.rle4, %0 ; <double> [#uses=0]
%3 = tail call double @asin(double 0.000000e+00) nounwind readonly ; <double> [#uses=0]
%4 = mul double 0.000000e+00, %0 ; <double> [#uses=1]
%5 = tail call double @tan(double 0.000000e+00) nounwind readonly ; <double> [#uses=0]
%6 = mul double %4, 0.000000e+00 ; <double> [#uses=1]
%7 = add 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
}
|
