[NFC] Refactor ShadowIV test to use FileCheck

Also get rid of unnamed values that make the test hard to read.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311980 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/LoopStrengthReduce/X86/2008-08-14-ShadowIV.ll b/test/Transforms/LoopStrengthReduce/X86/2008-08-14-ShadowIV.ll
index f862c263586915463f6c9d5593df29bf65c8357f..6b446f26a63a65738b1bdf1f20a5deb54535818a 100644 (file)
--- a/test/Transforms/LoopStrengthReduce/X86/2008-08-14-ShadowIV.ll
+++ b/test/Transforms/LoopStrengthReduce/X86/2008-08-14-ShadowIV.ll
@@ -1,24 +1,28 @@
-; RUN: opt < %s -loop-reduce -S -mtriple=x86_64-unknown-unknown | grep "phi double" | count 1
+; RUN: opt < %s -loop-reduce -S -mtriple=x86_64-unknown-unknown 2>&1 | FileCheck %s
 
 ; Provide legal integer types.
 target datalayout = "n8:16:32:64"
 
 
 define void @foobar(i32 %n) nounwind {
+
+; CHECK-LABEL:  foobar(
+; CHECK:        phi double
+
 entry:
-       icmp eq i32 %n, 0               ; <i1>:0 [#uses=2]
-       br i1 %0, label %return, label %bb.nph
+       %cond = icmp eq i32 %n, 0               ; <i1>:0 [#uses=2]
+       br i1 %cond, label %return, label %bb.nph
 
 bb.nph:                ; preds = %entry
-       %umax = select i1 %0, i32 1, i32 %n             ; <i32> [#uses=1]
+       %umax = select i1 %cond, i32 1, i32 %n          ; <i32> [#uses=1]
        br label %bb
 
 bb:            ; preds = %bb, %bb.nph
        %i.03 = phi i32 [ 0, %bb.nph ], [ %indvar.next, %bb ]           ; <i32> [#uses=3]
        tail call void @bar( i32 %i.03 ) nounwind
-       uitofp i32 %i.03 to double              ; <double>:1 [#uses=1]
-       tail call void @foo( double %1 ) nounwind
-       %indvar.next = add i32 %i.03, 1         ; <i32> [#uses=2]
+       %tmp1 = uitofp i32 %i.03 to double              ; <double>:1 [#uses=1]
+       tail call void @foo( double %tmp1 ) nounwind
+       %indvar.next = add nsw nuw i32 %i.03, 1         ; <i32> [#uses=2]
        %exitcond = icmp eq i32 %indvar.next, %umax             ; <i1> [#uses=1]
        br i1 %exitcond, label %return, label %bb
 
@@ -29,21 +33,26 @@ return:             ; preds = %bb, %entry
 ; Unable to eliminate cast because the mantissa bits for double are not enough
 ; to hold all of i64 IV bits.
 define void @foobar2(i64 %n) nounwind {
+
+; CHECK-LABEL:  foobar2(
+; CHECK-NOT:    phi double
+; CHECK-NOT:    phi float
+
 entry:
-       icmp eq i64 %n, 0               ; <i1>:0 [#uses=2]
-       br i1 %0, label %return, label %bb.nph
+       %cond = icmp eq i64 %n, 0               ; <i1>:0 [#uses=2]
+       br i1 %cond, label %return, label %bb.nph
 
 bb.nph:                ; preds = %entry
-       %umax = select i1 %0, i64 1, i64 %n             ; <i64> [#uses=1]
+       %umax = select i1 %cond, i64 1, i64 %n          ; <i64> [#uses=1]
        br label %bb
 
 bb:            ; preds = %bb, %bb.nph
        %i.03 = phi i64 [ 0, %bb.nph ], [ %indvar.next, %bb ]           ; <i64> [#uses=3]
-       trunc i64 %i.03 to i32          ; <i32>:1 [#uses=1]
-       tail call void @bar( i32 %1 ) nounwind
-       uitofp i64 %i.03 to double              ; <double>:2 [#uses=1]
-       tail call void @foo( double %2 ) nounwind
-       %indvar.next = add i64 %i.03, 1         ; <i64> [#uses=2]
+       %tmp1 = trunc i64 %i.03 to i32          ; <i32>:1 [#uses=1]
+       tail call void @bar( i32 %tmp1 ) nounwind
+       %tmp2 = uitofp i64 %i.03 to double              ; <double>:2 [#uses=1]
+       tail call void @foo( double %tmp2 ) nounwind
+       %indvar.next = add nsw nuw i64 %i.03, 1         ; <i64> [#uses=2]
        %exitcond = icmp eq i64 %indvar.next, %umax             ; <i1> [#uses=1]
        br i1 %exitcond, label %return, label %bb
 
@@ -53,20 +62,25 @@ return:             ; preds = %bb, %entry
 
 ; Unable to eliminate cast due to potentional overflow.
 define void @foobar3() nounwind {
+
+; CHECK-LABEL:  foobar3(
+; CHECK-NOT:    phi double
+; CHECK-NOT:    phi float
+
 entry:
-       tail call i32 (...) @nn( ) nounwind             ; <i32>:0 [#uses=1]
-       icmp eq i32 %0, 0               ; <i1>:1 [#uses=1]
-       br i1 %1, label %return, label %bb
+       %tmp0 = tail call i32 (...) @nn( ) nounwind             ; <i32>:0 [#uses=1]
+       %cond = icmp eq i32 %tmp0, 0            ; <i1>:1 [#uses=1]
+       br i1 %cond, label %return, label %bb
 
 bb:            ; preds = %bb, %entry
-       %i.03 = phi i32 [ 0, %entry ], [ %3, %bb ]              ; <i32> [#uses=3]
+       %i.03 = phi i32 [ 0, %entry ], [ %indvar.next, %bb ]            ; <i32> [#uses=3]
        tail call void @bar( i32 %i.03 ) nounwind
-       uitofp i32 %i.03 to double              ; <double>:2 [#uses=1]
-       tail call void @foo( double %2 ) nounwind
-       add i32 %i.03, 1                ; <i32>:3 [#uses=2]
-       tail call i32 (...) @nn( ) nounwind             ; <i32>:4 [#uses=1]
-       icmp ugt i32 %4, %3             ; <i1>:5 [#uses=1]
-       br i1 %5, label %bb, label %return
+       %tmp2 = uitofp i32 %i.03 to double              ; <double>:2 [#uses=1]
+       tail call void @foo( double %tmp2 ) nounwind
+       %indvar.next = add nuw nsw i32 %i.03, 1         ; <i32>:3 [#uses=2]
+       %tmp4 = tail call i32 (...) @nn( ) nounwind             ; <i32>:4 [#uses=1]
+       %exitcond = icmp ugt i32 %tmp4, %indvar.next            ; <i1>:5 [#uses=1]
+       br i1 %exitcond, label %bb, label %return
 
 return:                ; preds = %bb, %entry
        ret void
@@ -74,6 +88,11 @@ return:              ; preds = %bb, %entry
 
 ; Unable to eliminate cast due to overflow.
 define void @foobar4() nounwind {
+
+; CHECK-LABEL:  foobar4(
+; CHECK-NOT:    phi double
+; CHECK-NOT:    phi float
+
 entry:
        br label %bb.nph
 
@@ -86,7 +105,7 @@ bb:          ; preds = %bb, %bb.nph
        tail call void @bar( i32 %tmp2 ) nounwind
        %tmp3 = uitofp i8 %i.03 to double               ; <double>:1 [#uses=1]
        tail call void @foo( double %tmp3 ) nounwind
-       %indvar.next = add i8 %i.03, 1          ; <i32> [#uses=2]
+       %indvar.next = add nsw nuw i8 %i.03, 1          ; <i32> [#uses=2]
         %tmp = sext i8 %indvar.next to i32
        %exitcond = icmp eq i32 %tmp, 32767             ; <i1> [#uses=1]
        br i1 %exitcond, label %return, label %bb
@@ -100,4 +119,3 @@ declare void @bar(i32)
 declare void @foo(double)
 
 declare i32 @nn(...)
-