[CGP] auto-generate complete checks for add overflow tests; NFC

llvm-svn: 352437

llvm/test/Transforms/CodeGenPrepare/overflow-intrinsics.ll

@@ -4,75 +4,101 @@
 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
 target triple = "x86_64-apple-darwin10.0.0"
 
-; CHECK-LABEL: @test1(
-; CHECK: llvm.uadd.with.overflow
-; CHECK: ret i64
 define i64 @test1(i64 %a, i64 %b) nounwind ssp {
-entry:
+; CHECK-LABEL: @test1(
+; CHECK-NEXT:    [[UADD_OVERFLOW:%.*]] = call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 [[B:%.*]], i64 [[A:%.*]])
+; CHECK-NEXT:    [[UADD:%.*]] = extractvalue { i64, i1 } [[UADD_OVERFLOW]], 0
+; CHECK-NEXT:    [[OVERFLOW:%.*]] = extractvalue { i64, i1 } [[UADD_OVERFLOW]], 1
+; CHECK-NEXT:    [[Q:%.*]] = select i1 [[OVERFLOW]], i64 [[B]], i64 42
+; CHECK-NEXT:    ret i64 [[Q]]
+;
   %add = add i64 %b, %a
   %cmp = icmp ult i64 %add, %a
   %Q = select i1 %cmp, i64 %b, i64 42
   ret i64 %Q
 }
 
-; CHECK-LABEL: @test2(
-; CHECK: llvm.uadd.with.overflow
-; CHECK: ret i64
 define i64 @test2(i64 %a, i64 %b) nounwind ssp {
-entry:
+; CHECK-LABEL: @test2(
+; CHECK-NEXT:    [[UADD_OVERFLOW:%.*]] = call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 [[B:%.*]], i64 [[A:%.*]])
+; CHECK-NEXT:    [[UADD:%.*]] = extractvalue { i64, i1 } [[UADD_OVERFLOW]], 0
+; CHECK-NEXT:    [[OVERFLOW:%.*]] = extractvalue { i64, i1 } [[UADD_OVERFLOW]], 1
+; CHECK-NEXT:    [[Q:%.*]] = select i1 [[OVERFLOW]], i64 [[B]], i64 42
+; CHECK-NEXT:    ret i64 [[Q]]
+;
   %add = add i64 %b, %a
   %cmp = icmp ult i64 %add, %b
   %Q = select i1 %cmp, i64 %b, i64 42
   ret i64 %Q
 }
 
-; CHECK-LABEL: @test3(
-; CHECK: llvm.uadd.with.overflow
-; CHECK: ret i64
 define i64 @test3(i64 %a, i64 %b) nounwind ssp {
-entry:
+; CHECK-LABEL: @test3(
+; CHECK-NEXT:    [[UADD_OVERFLOW:%.*]] = call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 [[B:%.*]], i64 [[A:%.*]])
+; CHECK-NEXT:    [[UADD:%.*]] = extractvalue { i64, i1 } [[UADD_OVERFLOW]], 0
+; CHECK-NEXT:    [[OVERFLOW:%.*]] = extractvalue { i64, i1 } [[UADD_OVERFLOW]], 1
+; CHECK-NEXT:    [[Q:%.*]] = select i1 [[OVERFLOW]], i64 [[B]], i64 42
+; CHECK-NEXT:    ret i64 [[Q]]
+;
   %add = add i64 %b, %a
   %cmp = icmp ugt i64 %b, %add
   %Q = select i1 %cmp, i64 %b, i64 42
   ret i64 %Q
 }
 
-; CHECK-LABEL: @test4(
-; CHECK: llvm.uadd.with.overflow
-; CHECK: extractvalue
-; CHECK: extractvalue
-; CHECK: select
 define i64 @test4(i64 %a, i64 %b, i1 %c) nounwind ssp {
+; CHECK-LABEL: @test4(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    br i1 [[C:%.*]], label [[NEXT:%.*]], label [[EXIT:%.*]]
+; CHECK:       next:
+; CHECK-NEXT:    [[UADD_OVERFLOW:%.*]] = call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 [[B:%.*]], i64 [[A:%.*]])
+; CHECK-NEXT:    [[UADD:%.*]] = extractvalue { i64, i1 } [[UADD_OVERFLOW]], 0
+; CHECK-NEXT:    [[OVERFLOW:%.*]] = extractvalue { i64, i1 } [[UADD_OVERFLOW]], 1
+; CHECK-NEXT:    [[Q:%.*]] = select i1 [[OVERFLOW]], i64 [[B]], i64 42
+; CHECK-NEXT:    ret i64 [[Q]]
+; CHECK:       exit:
+; CHECK-NEXT:    ret i64 0
+;
 entry:
   %add = add i64 %b, %a
   %cmp = icmp ugt i64 %b, %add
   br i1 %c, label %next, label %exit
 
- next:
+next:
   %Q = select i1 %cmp, i64 %b, i64 42
   ret i64 %Q
 
- exit:
+exit:
   ret i64 0
 }
 
-; CHECK-LABEL: @test5(
-; CHECK-NOT: llvm.uadd.with.overflow
-; CHECK: next
 define i64 @test5(i64 %a, i64 %b, i64* %ptr, i1 %c) nounwind ssp {
+; CHECK-LABEL: @test5(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[ADD:%.*]] = add i64 [[B:%.*]], [[A:%.*]]
+; CHECK-NEXT:    store i64 [[ADD]], i64* [[PTR:%.*]]
+; CHECK-NEXT:    br i1 [[C:%.*]], label [[NEXT:%.*]], label [[EXIT:%.*]]
+; CHECK:       next:
+; CHECK-NEXT:    [[TMP0:%.*]] = icmp ugt i64 [[B]], [[ADD]]
+; CHECK-NEXT:    [[Q:%.*]] = select i1 [[TMP0]], i64 [[B]], i64 42
+; CHECK-NEXT:    ret i64 [[Q]]
+; CHECK:       exit:
+; CHECK-NEXT:    ret i64 0
+;
 entry:
   %add = add i64 %b, %a
   store i64 %add, i64* %ptr
   %cmp = icmp ugt i64 %b, %add
   br i1 %c, label %next, label %exit
 
- next:
+next:
   %Q = select i1 %cmp, i64 %b, i64 42
   ret i64 %Q
 
- exit:
+exit:
   ret i64 0
 }
 
 ; Check that every instruction inserted by -codegenprepare has a debug location.
 ; DEBUG: CheckModuleDebugify: PASS
+