-; RUN: llvm-upgrade < %s | llvm-as | opt -instcombine | llvm-dis | \
-; RUN: %prcontext div 1 | grep ret
+; RUN: opt -instcombine -S < %s | FileCheck %s
;; This tests that the instructions in the entry blocks are sunk into each
;; arm of the 'if'.
-int %foo(bool %C, int %A, int %B) {
+define i32 @test1(i1 %C, i32 %A, i32 %B) {
+; CHECK: @test1
entry:
- %tmp.2 = div int %A, %B
- %tmp.9 = add int %B, %A
- br bool %C, label %then, label %endif
+ %tmp.2 = sdiv i32 %A, %B ; <i32> [#uses=1]
+ %tmp.9 = add i32 %B, %A ; <i32> [#uses=1]
+ br i1 %C, label %then, label %endif
-then:
- ret int %tmp.9
+then: ; preds = %entry
+ ret i32 %tmp.9
-endif:
- ret int %tmp.2
+endif: ; preds = %entry
+; CHECK: sdiv i32
+; CHECK-NEXT: ret i32
+ ret i32 %tmp.2
}
+
+
+;; PHI use, sink divide before call.
+define i32 @test2(i32 %x) nounwind ssp {
+; CHECK: @test2
+; CHECK-NOT: sdiv i32
+entry:
+ br label %bb
+
+bb: ; preds = %bb2, %entry
+ %x_addr.17 = phi i32 [ %x, %entry ], [ %x_addr.0, %bb2 ] ; <i32> [#uses=4]
+ %i.06 = phi i32 [ 0, %entry ], [ %4, %bb2 ] ; <i32> [#uses=1]
+ %0 = add nsw i32 %x_addr.17, 1 ; <i32> [#uses=1]
+ %1 = sdiv i32 %0, %x_addr.17 ; <i32> [#uses=1]
+ %2 = icmp eq i32 %x_addr.17, 0 ; <i1> [#uses=1]
+ br i1 %2, label %bb1, label %bb2
+
+bb1: ; preds = %bb
+; CHECK: bb1:
+; CHECK-NEXT: add nsw i32 %x_addr.17, 1
+; CHECK-NEXT: sdiv i32
+; CHECK-NEXT: tail call i32 @bar()
+ %3 = tail call i32 @bar() nounwind ; <i32> [#uses=0]
+ br label %bb2
+
+bb2: ; preds = %bb, %bb1
+ %x_addr.0 = phi i32 [ %1, %bb1 ], [ %x_addr.17, %bb ] ; <i32> [#uses=2]
+ %4 = add nsw i32 %i.06, 1 ; <i32> [#uses=2]
+ %exitcond = icmp eq i32 %4, 1000000 ; <i1> [#uses=1]
+ br i1 %exitcond, label %bb4, label %bb
+
+bb4: ; preds = %bb2
+ ret i32 %x_addr.0
+}
+
+declare i32 @bar()