Fix instcombine to obey requested alignment when merging allocas.

[oota-llvm.git] / test / Transforms / SCCP / ipsccp-basic.ll

diff --git a/test/Transforms/SCCP/ipsccp-basic.ll b/test/Transforms/SCCP/ipsccp-basic.ll
index 7f0772e53d930822a330414d959f4eec86c1cd0a..8340f0c1e1273e12e396160904b1ba24c8459d17 100644 (file)
--- a/test/Transforms/SCCP/ipsccp-basic.ll
+++ b/test/Transforms/SCCP/ipsccp-basic.ll
@@ -1,13 +1,229 @@
-; RUN: opt < %s -ipsccp -S | \
-; RUN:   grep -v {ret i32 17} | grep -v {ret i32 undef} | not grep ret
+; RUN: opt < %s -ipsccp -S | FileCheck %s
 
-define internal i32 @bar(i32 %A) {
-       %X = add i32 1, 2               ; <i32> [#uses=0]
+;;======================== test1
+
+define internal i32 @test1a(i32 %A) {
+       %X = add i32 1, 2
        ret i32 %A
 }
+; CHECK: define internal i32 @test1a
+; CHECK: ret i32 undef
 
-define i32 @foo() {
-       %X = call i32 @bar( i32 17 )            ; <i32> [#uses=1]
+define i32 @test1b() {
+       %X = call i32 @test1a( i32 17 )
        ret i32 %X
+
+; CHECK: define i32 @test1b
+; CHECK: ret i32 17
+}
+
+
+
+;;======================== test2
+
+define internal i32 @test2a(i32 %A) {
+       %C = icmp eq i32 %A, 0  
+       br i1 %C, label %T, label %F
+T:
+       %B = call i32 @test2a( i32 0 )
+       ret i32 0
+F:
+       %C.upgrd.1 = call i32 @test2a(i32 1)
+       ret i32 %C.upgrd.1
+}
+; CHECK: define internal i32 @test2a
+; CHECK-NEXT: br label %T
+; CHECK: ret i32 undef
+
+
+define i32 @test2b() {
+       %X = call i32 @test2a(i32 0)
+       ret i32 %X
+}
+; CHECK: define i32 @test2b
+; CHECK-NEXT: %X = call i32 @test2a(i32 0)
+; CHECK-NEXT: ret i32 0
+
+
+;;======================== test3
+
+@G = internal global i32 undef
+
+define void @test3a() {
+       %X = load i32* @G
+       store i32 %X, i32* @G
+       ret void
+}
+; CHECK: define void @test3a
+; CHECK-NEXT: ret void
+
+
+define i32 @test3b() {
+       %V = load i32* @G
+       %C = icmp eq i32 %V, 17
+       br i1 %C, label %T, label %F
+T:
+       store i32 17, i32* @G
+       ret i32 %V
+F:     
+       store i32 123, i32* @G
+       ret i32 0
+}
+; CHECK: define i32 @test3b
+; CHECK-NOT: store
+; CHECK: ret i32 0
+
+
+;;======================== test4
+
+define internal {i64,i64} @test4a() {
+  %a = insertvalue {i64,i64} undef, i64 4, 1
+  %b = insertvalue {i64,i64} %a, i64 5, 0
+  ret {i64,i64} %b
+}
+
+define i64 @test4b() {
+  %a = invoke {i64,i64} @test4a()
+          to label %A unwind label %B
+A:
+  %b = extractvalue {i64,i64} %a, 0
+  %c = call i64 @test4c(i64 %b)
+  ret i64 %c
+B:
+  %val = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+           catch i8* null
+  ret i64 0
+}
+; CHECK: define i64 @test4b()
+; CHECK:   %c = call i64 @test4c(i64 5)
+; CHECK-NEXT:  ret i64 5
+
+
+define internal i64 @test4c(i64 %a) {
+  ret i64 %a
+}
+; CHECK: define internal i64 @test4c
+; CHECK: ret i64 undef
+
+
+
+;;======================== test5
+
+; PR4313
+define internal {i64,i64} @test5a() {
+  %a = insertvalue {i64,i64} undef, i64 4, 1
+  %b = insertvalue {i64,i64} %a, i64 5, 0
+  ret {i64,i64} %b
 }
 
+define i64 @test5b() {
+  %a = invoke {i64,i64} @test5a()
+          to label %A unwind label %B
+A:
+  %c = call i64 @test5c({i64,i64} %a)
+  ret i64 %c
+B:
+  %val = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+           catch i8* null
+  ret i64 0
+}
+
+; CHECK: define i64 @test5b()
+; CHECK:     A:
+; CHECK-NEXT:  %c = call i64 @test5c({ i64, i64 } %a)
+; CHECK-NEXT:  ret i64 5
+
+define internal i64 @test5c({i64,i64} %a) {
+  %b = extractvalue {i64,i64} %a, 0
+  ret i64 %b
+}
+
+
+;;======================== test6
+
+define i64 @test6a() {
+  ret i64 0
+}
+
+define i64 @test6b() {
+  %a = call i64 @test6a()
+  ret i64 %a
+}
+; CHECK: define i64 @test6b
+; CHECK: ret i64 0
+
+;;======================== test7
+
+
+%T = type {i32,i32}
+
+define internal %T @test7a(i32 %A) {
+  %X = add i32 1, %A
+  %mrv0 = insertvalue %T undef, i32 %X, 0
+  %mrv1 = insertvalue %T %mrv0, i32 %A, 1
+  ret %T %mrv1
+; CHECK: @test7a
+; CHECK-NEXT: %mrv0 = insertvalue %T undef, i32 18, 0
+; CHECK-NEXT: %mrv1 = insertvalue %T %mrv0, i32 17, 1
+}
+
+define i32 @test7b() {
+       %X = call %T @test7a(i32 17)
+        %Y = extractvalue %T %X, 0
+       %Z = add i32 %Y, %Y
+       ret i32 %Z
+; CHECK: define i32 @test7b
+; CHECK-NEXT: call %T @test7a(i32 17)
+; CHECK-NEXT: ret i32 36
+}
+
+;;======================== test8
+
+
+define internal {} @test8a(i32 %A, i32* %P) {
+  store i32 %A, i32* %P
+  ret {} {}
+; CHECK: @test8a
+; CHECK-NEXT: store i32 5, 
+; CHECK-NEXT: ret 
+}
+
+define void @test8b(i32* %P) {
+    %X = call {} @test8a(i32 5, i32* %P)
+    ret void
+; CHECK: define void @test8b
+; CHECK-NEXT: call {} @test8a
+; CHECK-NEXT: ret void
+}
+
+;;======================== test9
+
+@test9g = internal global {  } zeroinitializer
+
+define void @test9() {
+entry:
+        %local_foo = alloca {  }
+        load {  }* @test9g
+        store {  } %0, {  }* %local_foo
+        ret void
+}
+
+declare i32 @__gxx_personality_v0(...)
+
+;;======================== test10
+
+define i32 @test10a() nounwind {
+entry:
+  %call = call i32 @test10b(i32 undef)
+  ret i32 %call
+; CHECK: define i32 @test10a
+; CHECK: ret i32 0
+}
+
+define internal i32 @test10b(i32 %x) nounwind {
+entry:
+  %r = and i32 %x, 1
+  ret i32 %r
+; CHECK: define internal i32 @test10b
+; CHECK: ret i32 undef
+}