-; RUN: opt < %s -instcombine -S | \
-; RUN: grep call | not grep bitcast
+; RUN: opt < %s -instcombine -S | FileCheck %s
target datalayout = "e-p:32:32"
target triple = "i686-pc-linux-gnu"
define i32 @main() {
+; CHECK-LABEL: @main
+; CHECK: %[[call:.*]] = call i8* @ctime(i32* null)
+; CHECK: %[[cast:.*]] = ptrtoint i8* %[[call]] to i32
+; CHECK: ret i32 %[[cast]]
entry:
- %tmp = call i32 bitcast (i8* (i32*)* @ctime to i32 (i32*)*)( i32* null ) ; <i32> [#uses=1]
- ret i32 %tmp
+ %tmp = call i32 bitcast (i8* (i32*)* @ctime to i32 (i32*)*)( i32* null ) ; <i32> [#uses=1]
+ ret i32 %tmp
}
declare i8* @ctime(i32*)
+define internal { i8 } @foo(i32*) {
+entry:
+ ret { i8 } { i8 0 }
+}
+
+define void @test_struct_ret() {
+; CHECK-LABEL: @test_struct_ret
+; CHECK-NOT: bitcast
+entry:
+ %0 = call { i8 } bitcast ({ i8 } (i32*)* @foo to { i8 } (i16*)*)(i16* null)
+ ret void
+}
+
+declare i32 @fn1(i32)
+
+define i32 @test1(i32* %a) {
+; CHECK-LABEL: @test1
+; CHECK: %[[cast:.*]] = ptrtoint i32* %a to i32
+; CHECK-NEXT: %[[call:.*]] = tail call i32 @fn1(i32 %[[cast]])
+; CHECK-NEXT: ret i32 %[[call]]
+entry:
+ %call = tail call i32 bitcast (i32 (i32)* @fn1 to i32 (i32*)*)(i32* %a)
+ ret i32 %call
+}
+
+declare i32 @fn2(i16)
+
+define i32 @test2(i32* %a) {
+; CHECK-LABEL: @test2
+; CHECK: %[[call:.*]] = tail call i32 bitcast (i32 (i16)* @fn2 to i32 (i32*)*)(i32* %a)
+; CHECK-NEXT: ret i32 %[[call]]
+entry:
+ %call = tail call i32 bitcast (i32 (i16)* @fn2 to i32 (i32*)*)(i32* %a)
+ ret i32 %call
+}
+
+declare i32 @fn3(i64)
+
+define i32 @test3(i32* %a) {
+; CHECK-LABEL: @test3
+; CHECK: %[[call:.*]] = tail call i32 bitcast (i32 (i64)* @fn3 to i32 (i32*)*)(i32* %a)
+; CHECK-NEXT: ret i32 %[[call]]
+entry:
+ %call = tail call i32 bitcast (i32 (i64)* @fn3 to i32 (i32*)*)(i32* %a)
+ ret i32 %call
+}