Expand MUX instructions early on Hexagon

This time with all files included.

llvm-svn: 233696
diff --git a/llvm/test/CodeGen/Hexagon/adde.ll b/llvm/test/CodeGen/Hexagon/adde.ll
index 6d060c1..5a8345c 100644
--- a/llvm/test/CodeGen/Hexagon/adde.ll
+++ b/llvm/test/CodeGen/Hexagon/adde.ll
@@ -1,4 +1,4 @@
-; RUN: llc -march=hexagon < %s | FileCheck %s
+; RUN: llc -march=hexagon -hexagon-expand-condsets=0 < %s | FileCheck %s
 
 ; CHECK: r{{[0-9]+:[0-9]+}} = #0
 ; CHECK: r{{[0-9]+:[0-9]+}} = #1
diff --git a/llvm/test/CodeGen/Hexagon/expand-condsets-basic.ll b/llvm/test/CodeGen/Hexagon/expand-condsets-basic.ll
new file mode 100644
index 0000000..16fe8af
--- /dev/null
+++ b/llvm/test/CodeGen/Hexagon/expand-condsets-basic.ll
@@ -0,0 +1,11 @@
+; RUN: llc -march=hexagon < %s | FileCheck %s
+; CHECK: if{{.*}}add
+; CHECK: if{{.*}}sub
+
+define i32 @foo (i1 %a, i32 %b, i32 %c, i32 %d) nounwind {
+  %1 = add i32 %b, %d
+  %2 = sub i32 %c, %d
+  %3 = select i1 %a, i32 %1, i32 %2
+  ret i32 %3
+}
+
diff --git a/llvm/test/CodeGen/Hexagon/expand-condsets-rm-segment.ll b/llvm/test/CodeGen/Hexagon/expand-condsets-rm-segment.ll
new file mode 100644
index 0000000..cde7e6a0
--- /dev/null
+++ b/llvm/test/CodeGen/Hexagon/expand-condsets-rm-segment.ll
@@ -0,0 +1,131 @@
+; RUN: llc -O2 < %s
+; REQUIRES: asserts
+
+target datalayout = "e-m:e-p:32:32-i1:32-i64:64-a:0-v32:32-n16:32"
+target triple = "hexagon-unknown--elf"
+
+%struct.cpumask = type { [1 x i32] }
+%struct.load_weight = type { i32, i32 }
+
+@sysctl_sched_latency = global i32 6000000, align 4
+@normalized_sysctl_sched_latency = global i32 6000000, align 4
+@sysctl_sched_tunable_scaling = global i8 1, align 1
+@sysctl_sched_min_granularity = global i32 750000, align 4
+@normalized_sysctl_sched_min_granularity = global i32 750000, align 4
+@sysctl_sched_wakeup_granularity = global i32 1000000, align 4
+@normalized_sysctl_sched_wakeup_granularity = global i32 1000000, align 4
+@sysctl_sched_migration_cost = constant i32 500000, align 4
+@sysctl_sched_shares_window = global i32 10000000, align 4
+@sysctl_sched_child_runs_first = common global i32 0, align 4
+@cpu_online_mask = external constant %struct.cpumask*
+
+; Function Attrs: noinline nounwind
+define void @sched_init_granularity() #0 {
+entry:
+  tail call fastcc void @update_sysctl()
+  ret void
+}
+
+; Function Attrs: noinline nounwind
+define internal fastcc void @update_sysctl() #0 {
+entry:
+  %call = tail call i32 @get_update_sysctl_factor()
+  %0 = load i32, i32* @normalized_sysctl_sched_min_granularity, align 4, !tbaa !1
+  %mul = mul i32 %0, %call
+  store i32 %mul, i32* @sysctl_sched_min_granularity, align 4, !tbaa !1
+  %1 = load i32, i32* @normalized_sysctl_sched_latency, align 4, !tbaa !1
+  %mul1 = mul i32 %1, %call
+  store i32 %mul1, i32* @sysctl_sched_latency, align 4, !tbaa !1
+  %2 = load i32, i32* @normalized_sysctl_sched_wakeup_granularity, align 4, !tbaa !1
+  %mul2 = mul i32 %2, %call
+  store i32 %mul2, i32* @sysctl_sched_wakeup_granularity, align 4, !tbaa !1
+  ret void
+}
+
+; Function Attrs: noinline nounwind
+define i32 @calc_delta_mine(i32 %delta_exec, i32 %weight, %struct.load_weight* nocapture %lw) #0 {
+entry:
+  %cmp = icmp ugt i32 %weight, 1
+  %conv = zext i32 %delta_exec to i64
+  br i1 %cmp, label %if.then, label %if.end, !prof !5
+
+if.then:                                          ; preds = %entry
+  %conv2 = zext i32 %weight to i64
+  %mul = mul i64 %conv2, %conv
+  br label %if.end
+
+if.end:                                           ; preds = %entry, %if.then
+  %tmp.0 = phi i64 [ %mul, %if.then ], [ %conv, %entry ]
+  %inv_weight = getelementptr inbounds %struct.load_weight, %struct.load_weight* %lw, i32 0, i32 1
+  %0 = load i32, i32* %inv_weight, align 4, !tbaa !6
+  %tobool4 = icmp eq i32 %0, 0
+  br i1 %tobool4, label %if.then5, label %if.end22
+
+if.then5:                                         ; preds = %if.end
+  %weight7 = getelementptr inbounds %struct.load_weight, %struct.load_weight* %lw, i32 0, i32 0
+  %1 = load i32, i32* %weight7, align 4, !tbaa !9
+  %lnot9 = icmp eq i32 %1, 0
+  br i1 %lnot9, label %if.then17, label %if.else19, !prof !10
+
+if.then17:                                        ; preds = %if.then5
+  store i32 -1, i32* %inv_weight, align 4, !tbaa !6
+  br label %if.end22
+
+if.else19:                                        ; preds = %if.then5
+  %div = udiv i32 -1, %1
+  store i32 %div, i32* %inv_weight, align 4, !tbaa !6
+  br label %if.end22
+
+if.end22:                                         ; preds = %if.end, %if.then17, %if.else19
+  %2 = phi i32 [ %0, %if.end ], [ -1, %if.then17 ], [ %div, %if.else19 ]
+  %cmp23 = icmp ugt i64 %tmp.0, 4294967295
+  br i1 %cmp23, label %if.then31, label %if.else37, !prof !10
+
+if.then31:                                        ; preds = %if.end22
+  %add = add i64 %tmp.0, 32768
+  %shr = lshr i64 %add, 16
+  %conv33 = zext i32 %2 to i64
+  %mul34 = mul i64 %conv33, %shr
+  %add35 = add i64 %mul34, 32768
+  %shr36 = lshr i64 %add35, 16
+  br label %if.end43
+
+if.else37:                                        ; preds = %if.end22
+  %conv39 = zext i32 %2 to i64
+  %mul40 = mul i64 %conv39, %tmp.0
+  %add41 = add i64 %mul40, 2147483648
+  %shr42 = lshr i64 %add41, 32
+  br label %if.end43
+
+if.end43:                                         ; preds = %if.else37, %if.then31
+  %tmp.1 = phi i64 [ %shr36, %if.then31 ], [ %shr42, %if.else37 ]
+  %cmp49 = icmp ult i64 %tmp.1, 2147483647
+  %3 = trunc i64 %tmp.1 to i32
+  %conv51 = select i1 %cmp49, i32 %3, i32 2147483647
+  ret i32 %conv51
+}
+
+declare i32 @get_update_sysctl_factor() #0
+declare i32 @__bitmap_weight(i32*, i32) #1
+
+attributes #0 = { noinline nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #2 = { nounwind }
+
+!llvm.ident = !{!0}
+
+!0 = !{!"Clang 3.1"}
+!1 = !{!2, !2, i64 0}
+!2 = !{!"int", !3, i64 0}
+!3 = !{!"omnipotent char", !4, i64 0}
+!4 = !{!"Simple C/C++ TBAA"}
+!5 = !{!"branch_weights", i32 64, i32 4}
+!6 = !{!7, !8, i64 4}
+!7 = !{!"load_weight", !8, i64 0, !8, i64 4}
+!8 = !{!"long", !3, i64 0}
+!9 = !{!7, !8, i64 0}
+!10 = !{!"branch_weights", i32 4, i32 64}
+!11 = !{!12, !12, i64 0}
+!12 = !{!"any pointer", !3, i64 0}
+!13 = !{!3, !3, i64 0}
+!14 = !{i32 45854, i32 45878}
diff --git a/llvm/test/CodeGen/Hexagon/expand-condsets-undef.ll b/llvm/test/CodeGen/Hexagon/expand-condsets-undef.ll
new file mode 100644
index 0000000..85e72aa
--- /dev/null
+++ b/llvm/test/CodeGen/Hexagon/expand-condsets-undef.ll
@@ -0,0 +1,28 @@
+; RUN: llc -O2 < %s
+; REQUIRES: asserts
+
+target datalayout = "e-m:e-p:32:32-i64:64-a:0-v32:32-n16:32"
+target triple = "hexagon"
+
+; Function Attrs: nounwind optsize ssp
+define internal fastcc void @foo() nounwind {
+if.else473:
+  %0 = load i64, i64* undef, align 8
+  %sub = sub nsw i64 undef, %0
+  %conv476 = sitofp i64 %sub to double
+  %mul477 = fmul double %conv476, 0x3F50624DE0000000
+  br i1 undef, label %cond.true540, label %cond.end548
+
+cond.true540:
+  %1 = fptrunc double %mul477 to float
+  %2 = fptosi float %1 to i32
+  br label %cond.end548
+
+cond.end548:
+  %cond549 = phi i32 [ %2, %cond.true540 ], [ undef, %if.else473 ]
+  call void @bar(i32 %cond549) nounwind
+  unreachable
+}
+
+declare void @bar(i32) nounwind
+
diff --git a/llvm/test/CodeGen/Hexagon/sube.ll b/llvm/test/CodeGen/Hexagon/sube.ll
index 735ac9e..1a78822 100644
--- a/llvm/test/CodeGen/Hexagon/sube.ll
+++ b/llvm/test/CodeGen/Hexagon/sube.ll
@@ -1,4 +1,4 @@
-; RUN: llc -march=hexagon < %s | FileCheck %s
+; RUN: llc -march=hexagon -hexagon-expand-condsets=0 < %s | FileCheck %s
 
 ; CHECK: r{{[0-9]+:[0-9]+}} = #0
 ; CHECK: r{{[0-9]+:[0-9]+}} = #1
diff --git a/llvm/test/MC/Hexagon/inst_select.ll b/llvm/test/MC/Hexagon/inst_select.ll
index 7e88c65..29a2db0 100644
--- a/llvm/test/MC/Hexagon/inst_select.ll
+++ b/llvm/test/MC/Hexagon/inst_select.ll
@@ -7,4 +7,4 @@
   ret i32 %1
 }
 
-; CHECK:  0000 00400085 004201f4 00c09f52
+; CHECK:  0000 00400085 00600174 00608274 00c09f52