Remat VLDRD from constpool. Clean up some instruction property specifications.

llvm-svn: 89478

1 files changed, 65 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/ARM/remat-2.ll b/llvm/test/CodeGen/ARM/remat-2.ll
new file mode 100644
index 00000000000..1a871d258e3
--- /dev/null
+++ b/llvm/test/CodeGen/ARM/remat-2.ll
@@ -0,0 +1,65 @@
+; RUN: llc < %s -march=arm -mattr=+v6,+vfp2 -stats -info-output-file - | grep "Number of re-materialization"
+
+define arm_apcscc i32 @main(i32 %argc, i8** nocapture %argv) nounwind {
+entry:
+  br i1 undef, label %smvp.exit, label %bb.i3
+
+bb.i3:                                            ; preds = %bb.i3, %bb134
+  br i1 undef, label %smvp.exit, label %bb.i3
+
+smvp.exit:                                        ; preds = %bb.i3
+  %0 = fmul double undef, 2.400000e-03            ; <double> [#uses=2]
+  br i1 undef, label %bb138.preheader, label %bb159
+
+bb138.preheader:                                  ; preds = %smvp.exit
+  br label %bb138
+
+bb138:                                            ; preds = %bb138, %bb138.preheader
+  br i1 undef, label %bb138, label %bb145.loopexit
+
+bb142:                                            ; preds = %bb.nph218.bb.nph218.split_crit_edge, %phi0.exit
+  %1 = fmul double undef, -1.200000e-03           ; <double> [#uses=1]
+  %2 = fadd double undef, %1                      ; <double> [#uses=1]
+  %3 = fmul double %2, undef                      ; <double> [#uses=1]
+  %4 = fsub double 0.000000e+00, %3               ; <double> [#uses=1]
+  br i1 %14, label %phi1.exit, label %bb.i35
+
+bb.i35:                                           ; preds = %bb142
+  %5 = call arm_apcscc  double @sin(double %15) nounwind readonly ; <double> [#uses=1]
+  %6 = fmul double %5, 0x4031740AFA84AD8A         ; <double> [#uses=1]
+  %7 = fsub double 1.000000e+00, undef            ; <double> [#uses=1]
+  %8 = fdiv double %7, 6.000000e-01               ; <double> [#uses=1]
+  br label %phi1.exit
+
+phi1.exit:                                        ; preds = %bb.i35, %bb142
+  %.pn = phi double [ %6, %bb.i35 ], [ 0.000000e+00, %bb142 ] ; <double> [#uses=0]
+  %9 = phi double [ %8, %bb.i35 ], [ 0.000000e+00, %bb142 ] ; <double> [#uses=1]
+  %10 = fmul double undef, %9                     ; <double> [#uses=0]
+  br i1 %14, label %phi0.exit, label %bb.i
+
+bb.i:                                             ; preds = %phi1.exit
+  unreachable
+
+phi0.exit:                                        ; preds = %phi1.exit
+  %11 = fsub double %4, undef                     ; <double> [#uses=1]
+  %12 = fadd double 0.000000e+00, %11             ; <double> [#uses=1]
+  store double %12, double* undef, align 4
+  br label %bb142
+
+bb145.loopexit:                                   ; preds = %bb138
+  br i1 undef, label %bb.nph218.bb.nph218.split_crit_edge, label %bb159
+
+bb.nph218.bb.nph218.split_crit_edge:              ; preds = %bb145.loopexit
+  %13 = fmul double %0, 0x401921FB54442D18        ; <double> [#uses=1]
+  %14 = fcmp ugt double %0, 6.000000e-01          ; <i1> [#uses=2]
+  %15 = fdiv double %13, 6.000000e-01             ; <double> [#uses=1]
+  br label %bb142
+
+bb159:                                            ; preds = %bb145.loopexit, %smvp.exit, %bb134
+  unreachable
+
+bb166:                                            ; preds = %bb127
+  unreachable
+}
+
+declare arm_apcscc double @sin(double) nounwind readonly