[RS4GC] Fix crash in the case that a live variable has a constant base.

[oota-llvm.git] / test / Transforms / JumpThreading / select.ll

diff --git a/test/Transforms/JumpThreading/select.ll b/test/Transforms/JumpThreading/select.ll
index 9676efec9df2726b024ddf7f3bb79ff8ba1b1c05..d0df7725f72291aab6254cdd47c99a543b09af7f 100644 (file)
--- a/test/Transforms/JumpThreading/select.ll
+++ b/test/Transforms/JumpThreading/select.ll
@@ -10,7 +10,7 @@ declare void @quux()
 ; Mostly theoretical since instruction combining simplifies all selects of
 ; booleans where at least one operand is true/false/undef.
 
-; CHECK: @test_br
+; CHECK-LABEL: @test_br(
 ; CHECK-NEXT: entry:
 ; CHECK-NEXT: br i1 %cond, label %L1,
 define void @test_br(i1 %cond, i1 %value) nounwind {
@@ -34,7 +34,7 @@ L3:
 
 ; Jump threading of switch with select as condition.
 
-; CHECK: @test_switch
+; CHECK-LABEL: @test_switch(
 ; CHECK-NEXT: entry:
 ; CHECK-NEXT: br i1 %cond, label %L1,
 define void @test_switch(i1 %cond, i8 %value) nounwind {
@@ -69,7 +69,7 @@ L4:
 
 ; Jump threading of indirectbr with select as address.
 
-; CHECK: @test_indirectbr
+; CHECK-LABEL: @test_indirectbr(
 ; CHECK-NEXT: entry:
 ; CHECK-NEXT: br i1 %cond, label %L1, label %L3
 define void @test_indirectbr(i1 %cond, i8* %address) nounwind {
@@ -93,7 +93,7 @@ L3:
 
 ; A more complicated case: the condition is a select based on a comparison.
 
-; CHECK: @test_switch_cmp
+; CHECK-LABEL: @test_switch_cmp(
 ; CHECK-NEXT: entry:
 ; CHECK-NEXT: br i1 %cond, label %L0, label %[[THREADED:[A-Za-z.0-9]+]]
 ; CHECK: [[THREADED]]:
@@ -127,7 +127,7 @@ L4:
 ; CHECK: test_switch_default
 ; CHECK: entry:
 ; CHECK: load
-; CHECK: switch
+; CHECK: icmp
 ; CHECK: [[THREADED:[A-Za-z.0-9]+]]:
 ; CHECK: store
 ; CHECK: br
@@ -135,7 +135,7 @@ L4:
 ; CHECK: icmp
 define void @test_switch_default(i32* nocapture %status) nounwind {
 entry:
-  %0 = load i32* %status, align 4
+  %0 = load i32, i32* %status, align 4
   switch i32 %0, label %L2 [
     i32 5061, label %L1
     i32 0, label %L2
@@ -146,7 +146,7 @@ L1:
   br label %L2
 
 L2:
-  %1 = load i32* %status, align 4
+  %1 = load i32, i32* %status, align 4
   %cmp57.i = icmp eq i32 %1, 0
   br i1 %cmp57.i, label %L3, label %L4
 
@@ -157,3 +157,66 @@ L3:
 L4:
   ret void
 }
+
+define void @unfold1(double %x, double %y) nounwind {
+entry:
+  %sub = fsub double %x, %y
+  %cmp = fcmp ogt double %sub, 1.000000e+01
+  br i1 %cmp, label %cond.end4, label %cond.false
+
+cond.false:                                       ; preds = %entry
+  %add = fadd double %x, %y
+  %cmp1 = fcmp ogt double %add, 1.000000e+01
+  %add. = select i1 %cmp1, double %add, double 0.000000e+00
+  br label %cond.end4
+
+cond.end4:                                        ; preds = %entry, %cond.false
+  %cond5 = phi double [ %add., %cond.false ], [ %sub, %entry ]
+  %cmp6 = fcmp oeq double %cond5, 0.000000e+00
+  br i1 %cmp6, label %if.then, label %if.end
+
+if.then:                                          ; preds = %cond.end4
+  call void @foo()
+  br label %if.end
+
+if.end:                                           ; preds = %if.then, %cond.end4
+  ret void
+
+; CHECK-LABEL: @unfold1
+; CHECK: br i1 %cmp, label %cond.end4, label %cond.false
+; CHECK: br i1 %cmp1, label %cond.end4, label %if.then
+; CHECK: br i1 %cmp6, label %if.then, label %if.end
+; CHECK: br label %if.end
+}
+
+
+define void @unfold2(i32 %x, i32 %y) nounwind {
+entry:
+  %sub = sub nsw i32 %x, %y
+  %cmp = icmp sgt i32 %sub, 10
+  br i1 %cmp, label %cond.end4, label %cond.false
+
+cond.false:                                       ; preds = %entry
+  %add = add nsw i32 %x, %y
+  %cmp1 = icmp sgt i32 %add, 10
+  %add. = select i1 %cmp1, i32 0, i32 %add
+  br label %cond.end4
+
+cond.end4:                                        ; preds = %entry, %cond.false
+  %cond5 = phi i32 [ %add., %cond.false ], [ %sub, %entry ]
+  %cmp6 = icmp eq i32 %cond5, 0
+  br i1 %cmp6, label %if.then, label %if.end
+
+if.then:                                          ; preds = %cond.end4
+  call void @foo()
+  br label %if.end
+
+if.end:                                           ; preds = %if.then, %cond.end4
+  ret void
+
+; CHECK-LABEL: @unfold2
+; CHECK: br i1 %cmp, label %if.end, label %cond.false
+; CHECK: br i1 %cmp1, label %if.then, label %cond.end4
+; CHECK: br i1 %cmp6, label %if.then, label %if.end
+; CHECK: br label %if.end
+}