Address issues found by Duncan during post-commit review of r177856.

[oota-llvm.git] / test / Transforms / InstCombine / call.ll

diff --git a/test/Transforms/InstCombine/call.ll b/test/Transforms/InstCombine/call.ll
index df9b2a68d9dc861141e29f144daf83be417f7fa1..96ec420eaa8e6625cfcb4832ef2133671e7d199a 100644 (file)
--- a/test/Transforms/InstCombine/call.ll
+++ b/test/Transforms/InstCombine/call.ll
@@ -1,8 +1,7 @@
 ; Ignore stderr, we expect warnings there
-; RUN: llvm-as < %s 2> /dev/null | opt -instcombine | llvm-dis | \
-; RUN:    grep call | notcast
-; END.
+; RUN: opt < %s -instcombine 2> /dev/null -S | FileCheck %s
 
+target datalayout = "E-p:64:64:64-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(i8*)
@@ -10,39 +9,53 @@ declare void @test1a(i8*)
 define void @test1(i32* %A) {
         call void bitcast (void (i8*)* @test1a to void (i32*)*)( i32* %A )
         ret void
+; CHECK: %1 = bitcast i32* %A to i8*
+; CHECK: call void @test1a(i8* %1)
+; CHECK: ret void
 }
 
 ; More complex case, translate argument because of resolution.  This is safe 
 ; because we have the body of the function
 define void @test2a(i8 %A) {
         ret void
+; CHECK: ret void
 }
 
 define i32 @test2(i32 %A) {
         call void bitcast (void (i8)* @test2a to void (i32)*)( i32 %A )
         ret i32 %A
+; CHECK: %1 = trunc i32 %A to i8
+; CHECK: call void @test2a(i8 %1)
+; CHECK: ret i32 %A
 }
 
 
 ; Resolving this should insert a cast from sbyte to int, following the C 
 ; promotion rules.
-declare void @test3a(i8, ...)
+define void @test3a(i8, ...) {unreachable }
 
 define void @test3(i8 %A, i8 %B) {
         call void bitcast (void (i8, ...)* @test3a to void (i8, i8)*)( i8 %A, i8 %B 
 )
         ret void
+; CHECK: %1 = zext i8 %B to i32
+; CHECK: call void (i8, ...)* @test3a(i8 %A, i32 %1)
+; CHECK: ret void
 }
 
 
 ; test conversion of return value...
 define i8 @test4a() {
         ret i8 0
+; CHECK: ret i8 0
 }
 
 define i32 @test4() {
         %X = call i32 bitcast (i8 ()* @test4a to i32 ()*)( )            ; <i32> [#uses=1]
         ret i32 %X
+; CHECK: %X = call i8 @test4a()
+; CHECK: %1 = zext i8 %X to i32
+; CHECK: ret i32 %1
 }
 
 
@@ -53,6 +66,8 @@ declare i32 @test5a()
 define i32 @test5() {
         %X = call i32 @test5a( )                ; <i32> [#uses=1]
         ret i32 %X
+; CHECK: %X = call i32 @test5a()
+; CHECK: ret i32 %X
 }
 
 
@@ -60,19 +75,62 @@ define i32 @test5() {
 declare i32 @test6a(i32)
 
 define i32 @test6() {
-        %X = call i32 bitcast (i32 (i32)* @test6a to i32 ()*)( )                ; <i32> [#uses=1]
+        %X = call i32 bitcast (i32 (i32)* @test6a to i32 ()*)( )
         ret i32 %X
+; CHECK: %X = call i32 @test6a(i32 0)
+; CHECK: ret i32 %X
 }
 
 
 ; test removal of arguments, only can happen with a function body
 define void @test7a() {
         ret void
+; CHECK: ret void
 }
 
 define void @test7() {
         call void bitcast (void ()* @test7a to void (i32)*)( i32 5 )
         ret void
+; CHECK: call void @test7a()
+; CHECK: ret void
 }
 
 
+; rdar://7590304
+declare void @test8a()
+
+define i8* @test8() {
+  invoke void @test8a()
+          to label %invoke.cont unwind label %try.handler
+
+invoke.cont:                                      ; preds = %entry
+  unreachable
+
+try.handler:                                      ; preds = %entry
+  %exn = landingpad {i8*, i32} personality i32 (...)* @__gxx_personality_v0
+            cleanup
+  ret i8* null
+}
+
+declare i32 @__gxx_personality_v0(...)
+
+; 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.
+; CHECK: @test8() {
+; CHECK-NEXT: invoke void @test8a()
+
+
+
+; 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 {
+entry:
+  %call = call i8* bitcast (i8* (i8*, i8*, ...)* @test9x to i8* (i8*, i8*)*)(i8* %arg, i8* %tmp3) noredzone
+  ret i8* %call
+; CHECK: @test9(
+; CHECK: call i8* bitcast
+}
+