Teach InlineCost to account for a null check which can be folded away

[oota-llvm.git] / test / Transforms / Inline / inline_cleanup.ll

diff --git a/test/Transforms/Inline/inline_cleanup.ll b/test/Transforms/Inline/inline_cleanup.ll
index b744ae1ef396cd7dc7f8a8c3e996cd8713ae18cc..4361c2e8bbf435b2aec3cfb8f28ec204606e90d1 100644 (file)
--- a/test/Transforms/Inline/inline_cleanup.ll
+++ b/test/Transforms/Inline/inline_cleanup.ll
@@ -52,7 +52,7 @@ UnifiedReturnBlock:           ; preds = %cond_next13
 declare void @ext(i32*)
 
 define void @test() {
-; CHECK: @test
+; CHECK-LABEL: @test(
 ; CHECK-NOT: ret
 ;
 ; FIXME: This should be a CHECK-NOT, but currently we have a bug that causes us
@@ -71,3 +71,143 @@ entry:
        tail call fastcc void @foo( i32 8 )
        ret void
 }
+
+declare void @f(i32 %x)
+
+define void @inner2(i32 %x, i32 %y, i32 %z, i1 %b) {
+entry:
+  %cmp1 = icmp ne i32 %x, 0
+  br i1 %cmp1, label %then1, label %end1
+
+then1:
+  call void @f(i32 %x)
+  br label %end1
+
+end1:
+  %x2 = and i32 %x, %z
+  %cmp2 = icmp sgt i32 %x2, 1
+  br i1 %cmp2, label %then2, label %end2
+
+then2:
+  call void @f(i32 %x2)
+  br label %end2
+
+end2:
+  %y2 = or i32 %y, %z
+  %cmp3 = icmp sgt i32 %y2, 0
+  br i1 %cmp3, label %then3, label %end3
+
+then3:
+  call void @f(i32 %y2)
+  br label %end3
+
+end3:
+  br i1 %b, label %end3.1, label %end3.2
+
+end3.1:
+  %x3.1 = or i32 %x, 10
+  br label %end3.3
+
+end3.2:
+  %x3.2 = or i32 %x, 10
+  br label %end3.3
+
+end3.3:
+  %x3.3 = phi i32 [ %x3.1, %end3.1 ], [ %x3.2, %end3.2 ]
+  %cmp4 = icmp slt i32 %x3.3, 1
+  br i1 %cmp4, label %then4, label %end4
+
+then4:
+  call void @f(i32 %x3.3)
+  br label %end4
+
+end4:
+  ret void
+}
+
+define void @outer2(i32 %z, i1 %b) {
+; Ensure that after inlining, none of the blocks with a call to @f actually
+; make it through inlining.
+; CHECK-LABEL: define void @outer2(
+; CHECK-NOT: call
+; CHECK: ret void
+
+entry:
+  call void @inner2(i32 0, i32 -1, i32 %z, i1 %b)
+  ret void
+}
+
+define void @PR12470_inner(i16 signext %p1) nounwind uwtable {
+entry:
+  br i1 undef, label %cond.true, label %cond.false
+
+cond.true:
+  br label %cond.end
+
+cond.false:
+  %conv = sext i16 %p1 to i32
+  br label %cond.end
+
+cond.end:
+  %cond = phi i32 [ undef, %cond.true ], [ 0, %cond.false ]
+  %tobool = icmp eq i32 %cond, 0
+  br i1 %tobool, label %if.end5, label %if.then
+
+if.then:
+  ret void
+
+if.end5:
+  ret void
+}
+
+define void @PR12470_outer() {
+; This previously crashed during inliner cleanup and folding inner return
+; instructions. Check that we don't crash and we produce a function with a single
+; return instruction due to merging the returns of the inlined function.
+; CHECK-LABEL: define void @PR12470_outer(
+; CHECK-NOT: call
+; CHECK: ret void
+; CHECK-NOT: ret void
+; CHECK: }
+
+entry:
+  call void @PR12470_inner(i16 signext 1)
+  ret void
+}
+
+define void @crasher_inner() nounwind uwtable {
+entry:
+  br i1 false, label %for.end28, label %for.body6
+
+for.body6:
+  br i1 undef, label %for.body6, label %for.cond12.for.inc26_crit_edge
+
+for.cond12.for.inc26_crit_edge:
+  br label %for.body6.1
+
+for.end28:
+  ret void
+
+for.body6.1:
+  br i1 undef, label %for.body6.1, label %for.cond12.for.inc26_crit_edge.1
+
+for.cond12.for.inc26_crit_edge.1:
+  br label %for.body6.2
+
+for.body6.2:
+  br i1 undef, label %for.body6.2, label %for.cond12.for.inc26_crit_edge.2
+
+for.cond12.for.inc26_crit_edge.2:
+  br label %for.end28
+}
+
+define void @crasher_outer() {
+; CHECK-LABEL: @crasher_outer(
+; CHECK-NOT: call
+; CHECK: ret void
+; CHECK-NOT: ret
+; CHECK: }
+entry:
+  tail call void @crasher_inner()
+  ret void
+}