-; RUN: as < %s | opt -instcombine -die | dis | grep call | grep-not cast
+; Ignore stderr, we expect warnings there
+; RUN: opt < %s -instcombine 2> /dev/null -S | FileCheck %s
-implementation
+target datalayout = "E-p:64:64:64-p1:16:16:16-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
; Simple case, argument translatable without changing the value
-declare void %test1a(sbyte *%A)
-void %test1(int *%A) {
- call void(int*)* cast (void(sbyte*)* %test1a to void(int*)*)(int* %A)
- ret void
+declare void @test1a(i8*)
+
+define void @test1(i32* %A) {
+; CHECK-LABEL: @test1(
+; CHECK: %1 = bitcast i32* %A to i8*
+; CHECK: call void @test1a(i8* %1)
+; CHECK: ret void
+ call void bitcast (void (i8*)* @test1a to void (i32*)*)( i32* %A )
+ ret void
}
-; More complex case, translate argument because of resolution. This is safe
+
+; Should not do because of change in address space of the parameter
+define void @test1_as1_illegal(i32 addrspace(1)* %A) {
+; CHECK-LABEL: @test1_as1_illegal(
+; CHECK: call void bitcast
+ call void bitcast (void (i8*)* @test1a to void (i32 addrspace(1)*)*)(i32 addrspace(1)* %A)
+ ret void
+}
+
+; Test1, but the argument has a different sized address-space
+declare void @test1a_as1(i8 addrspace(1)*)
+
+; This one is OK to perform
+define void @test1_as1(i32 addrspace(1)* %A) {
+; CHECK-LABEL: @test1_as1(
+; CHECK: %1 = bitcast i32 addrspace(1)* %A to i8 addrspace(1)*
+; CHECK: call void @test1a_as1(i8 addrspace(1)* %1)
+; CHECK: ret void
+ call void bitcast (void (i8 addrspace(1)*)* @test1a_as1 to void (i32 addrspace(1)*)*)(i32 addrspace(1)* %A )
+ ret void
+}
+
+; More complex case, translate argument because of resolution. This is safe
; because we have the body of the function
-void %test2a(sbyte %A) { ret void }
-int %test2(int %A) {
- call void(int)* cast (void(sbyte)* %test2a to void(int)*)(int %A)
- ret int %A
+define void @test2a(i8 %A) {
+; CHECK-LABEL: @test2a(
+; CHECK: ret void
+ ret void
+}
+
+define i32 @test2(i32 %A) {
+; CHECK-LABEL: @test2(
+; CHECK: call void bitcast
+; CHECK: ret i32 %A
+ call void bitcast (void (i8)* @test2a to void (i32)*)( i32 %A )
+ ret i32 %A
}
-; Resolving this should insert a cast from sbyte to int, following the C
+
+; Resolving this should insert a cast from sbyte to int, following the C
; promotion rules.
-declare void %test3a(sbyte %A, ...)
-void %test3(sbyte %A, sbyte %B) {
- call void(sbyte, sbyte)* cast (void(sbyte,...)* %test3a to void(sbyte,sbyte)*)(sbyte %A, sbyte %B)
- ret void
+define void @test3a(i8, ...) {unreachable }
+
+define void @test3(i8 %A, i8 %B) {
+; CHECK-LABEL: @test3(
+; CHECK: %1 = zext i8 %B to i32
+; CHECK: call void (i8, ...) @test3a(i8 %A, i32 %1)
+; CHECK: ret void
+ call void bitcast (void (i8, ...)* @test3a to void (i8, i8)*)( i8 %A, i8 %B)
+ ret void
}
; test conversion of return value...
-sbyte %test4a() { ret sbyte 0 }
-int %test4() {
- %X = call int()* cast (sbyte()* %test4a to int()*)()
- ret int %X
+define i8 @test4a() {
+; CHECK-LABEL: @test4a(
+; CHECK: ret i8 0
+ ret i8 0
+}
+
+define i32 @test4() {
+; CHECK-LABEL: @test4(
+; CHECK: call i32 bitcast
+ %X = call i32 bitcast (i8 ()* @test4a to i32 ()*)( ) ; <i32> [#uses=1]
+ ret i32 %X
}
-; test conversion of return value... no value conversion occurs so we can do
+; test conversion of return value... no value conversion occurs so we can do
; this with just a prototype...
-declare uint %test5a()
-int %test5() {
- %X = call int()* cast (uint()* %test5a to int()*)()
- ret int %X
+declare i32 @test5a()
+
+define i32 @test5() {
+; CHECK-LABEL: @test5(
+; CHECK: %X = call i32 @test5a()
+; CHECK: ret i32 %X
+ %X = call i32 @test5a( ) ; <i32> [#uses=1]
+ ret i32 %X
}
; test addition of new arguments...
-declare int %test6a(int %X)
-int %test6() {
- %X = call int()* cast (int(int)* %test6a to int()*)()
- ret int %X
+declare i32 @test6a(i32)
+
+define i32 @test6() {
+; CHECK-LABEL: @test6(
+; CHECK: %X = call i32 @test6a(i32 0)
+; CHECK: ret i32 %X
+ %X = call i32 bitcast (i32 (i32)* @test6a to i32 ()*)( )
+ ret i32 %X
}
; test removal of arguments, only can happen with a function body
-void %test7a() { ret void }
-void %test7() {
- call void(int)* cast (void()* %test7a to void(int)*)(int 5)
- ret void
+define void @test7a() {
+; CHECK-LABEL: @test7a(
+; CHECK: ret void
+ ret void
+}
+
+define void @test7() {
+; CHECK-LABEL: @test7(
+; CHECK: call void @test7a()
+; CHECK: ret void
+ call void bitcast (void ()* @test7a to void (i32)*)( i32 5 )
+ ret void
}
+
+; rdar://7590304
+declare void @test8a()
+
+define i8* @test8() personality i32 (...)* @__gxx_personality_v0 {
+; CHECK-LABEL: @test8(
+; CHECK-NEXT: invoke void @test8a()
+; Don't turn this into "unreachable": the callee and caller don't agree in
+; calling conv, but the implementation of test8a may actually end up using the
+; right calling conv.
+ invoke void @test8a()
+ to label %invoke.cont unwind label %try.handler
+
+invoke.cont: ; preds = %entry
+ unreachable
+
+try.handler: ; preds = %entry
+ %exn = landingpad {i8*, i32}
+ cleanup
+ ret i8* null
+}
+
+declare i32 @__gxx_personality_v0(...)
+
+
+; Don't turn this into a direct call, because test9x is just a prototype and
+; doing so will make it varargs.
+; rdar://9038601
+declare i8* @test9x(i8*, i8*, ...) noredzone
+define i8* @test9(i8* %arg, i8* %tmp3) nounwind ssp noredzone {
+; CHECK-LABEL: @test9
+entry:
+ %call = call i8* bitcast (i8* (i8*, i8*, ...)* @test9x to i8* (i8*, i8*)*)(i8* %arg, i8* %tmp3) noredzone
+ ret i8* %call
+; CHECK-LABEL: @test9(
+; CHECK: call i8* bitcast
+}
+
+
+; Parameter that's a vector of pointers
+declare void @test10a(<2 x i8*>)
+
+define void @test10(<2 x i32*> %A) {
+; CHECK-LABEL: @test10(
+; CHECK: %1 = bitcast <2 x i32*> %A to <2 x i8*>
+; CHECK: call void @test10a(<2 x i8*> %1)
+; CHECK: ret void
+ call void bitcast (void (<2 x i8*>)* @test10a to void (<2 x i32*>)*)(<2 x i32*> %A)
+ ret void
+}
+
+; Don't transform because different address spaces
+declare void @test10a_mixed_as(<2 x i8 addrspace(1)*>)
+
+define void @test10_mixed_as(<2 x i8*> %A) {
+; CHECK-LABEL: @test10_mixed_as(
+; CHECK: call void bitcast
+ call void bitcast (void (<2 x i8 addrspace(1)*>)* @test10a_mixed_as to void (<2 x i8*>)*)(<2 x i8*> %A)
+ ret void
+}
+
+; Return type that's a pointer
+define i8* @test11a() {
+ ret i8* zeroinitializer
+}
+
+define i32* @test11() {
+; CHECK-LABEL: @test11(
+; CHECK: %X = call i8* @test11a()
+; CHECK: %1 = bitcast i8* %X to i32*
+ %X = call i32* bitcast (i8* ()* @test11a to i32* ()*)()
+ ret i32* %X
+}
+
+; Return type that's a pointer with a different address space
+define i8 addrspace(1)* @test11a_mixed_as() {
+ ret i8 addrspace(1)* zeroinitializer
+}
+
+define i8* @test11_mixed_as() {
+; CHECK-LABEL: @test11_mixed_as(
+; CHECK: call i8* bitcast
+ %X = call i8* bitcast (i8 addrspace(1)* ()* @test11a_mixed_as to i8* ()*)()
+ ret i8* %X
+}
+
+; Return type that's a vector of pointers
+define <2 x i8*> @test12a() {
+ ret <2 x i8*> zeroinitializer
+}
+
+define <2 x i32*> @test12() {
+; CHECK-LABEL: @test12(
+; CHECK: %X = call <2 x i8*> @test12a()
+; CHECK: %1 = bitcast <2 x i8*> %X to <2 x i32*>
+ %X = call <2 x i32*> bitcast (<2 x i8*> ()* @test12a to <2 x i32*> ()*)()
+ ret <2 x i32*> %X
+}
+
+define <2 x i8 addrspace(1)*> @test12a_mixed_as() {
+ ret <2 x i8 addrspace(1)*> zeroinitializer
+}
+
+define <2 x i8*> @test12_mixed_as() {
+; CHECK-LABEL: @test12_mixed_as(
+; CHECK: call <2 x i8*> bitcast
+ %X = call <2 x i8*> bitcast (<2 x i8 addrspace(1)*> ()* @test12a_mixed_as to <2 x i8*> ()*)()
+ ret <2 x i8*> %X
+}
+
+
+; Mix parameter that's a vector of integers and pointers of the same size
+declare void @test13a(<2 x i64>)
+
+define void @test13(<2 x i32*> %A) {
+; CHECK-LABEL: @test13(
+; CHECK: call void bitcast
+ call void bitcast (void (<2 x i64>)* @test13a to void (<2 x i32*>)*)(<2 x i32*> %A)
+ ret void
+}
+
+; Mix parameter that's a vector of integers and pointers of the same
+; size, but the other way around
+declare void @test14a(<2 x i8*>)
+
+define void @test14(<2 x i64> %A) {
+; CHECK-LABEL: @test14(
+; CHECK: call void bitcast
+ call void bitcast (void (<2 x i8*>)* @test14a to void (<2 x i64>)*)(<2 x i64> %A)
+ ret void
+}
+
+
+; Return type that's a vector
+define <2 x i16> @test15a() {
+ ret <2 x i16> zeroinitializer
+}
+
+define i32 @test15() {
+; CHECK-LABEL: @test15(
+; CHECK: %X = call <2 x i16> @test15a()
+; CHECK: %1 = bitcast <2 x i16> %X to i32
+ %X = call i32 bitcast (<2 x i16> ()* @test15a to i32 ()*)( )
+ ret i32 %X
+}
+
+define i32 @test16a() {
+ ret i32 0
+}
+
+define <2 x i16> @test16() {
+; CHECK-LABEL: @test16(
+; CHECK: %X = call i32 @test16a()
+; CHECK: %1 = bitcast i32 %X to <2 x i16>
+ %X = call <2 x i16> bitcast (i32 ()* @test16a to <2 x i16> ()*)( )
+ ret <2 x i16> %X
+}
projects / oota-llvm.git / blobdiff