Removing indvars tests that directly test canonical IVs and nothing else.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139518 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Trick 2011-09-12 18:33:08 +00:00
parent f21bdf4f42
commit 29da5e6855
6 changed files with 0 additions and 137 deletions

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@ -1,15 +0,0 @@
; RUN: opt < %s -indvars -S | grep indvar
define i32 @test() {
; <label>:0
br i1 true, label %LoopHead, label %LoopHead
LoopHead: ; preds = %LoopHead, %0, %0
%A = phi i32 [ 7, %0 ], [ 7, %0 ], [ %B, %LoopHead ] ; <i32> [#uses=1]
%B = add i32 %A, 1 ; <i32> [#uses=2]
br i1 true, label %LoopHead, label %Out
Out: ; preds = %LoopHead
ret i32 %B
}

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; RUN: opt < %s -indvars -S | grep indvar | not grep i32
@G = global i64 0 ; <i64*> [#uses=1]
define void @test() {
; <label>:0
br label %Loop
Loop: ; preds = %Loop, %0
%X = phi i64 [ 1, %0 ], [ %X.next, %Loop ] ; <i64> [#uses=2]
%X.next = add i64 %X, 1 ; <i64> [#uses=1]
store i64 %X, i64* @G
br label %Loop
}

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; RUN: opt < %s -indvars -S > %t
; RUN: grep {icmp ugt i8\\\*} %t | count 1
; RUN: grep {icmp sgt i8\\\*} %t | count 1
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-n:32:64"
%struct.CKenCodeCodec = type <{ i8 }>
define void @foo(i8* %str1Ptr, i8* %str2Ptr, i8* %inLastBytePtr) nounwind {
entry:
%0 = icmp ult i8* %str2Ptr, %str1Ptr ; <i1> [#uses=1]
%str2Ptr_addr.0 = select i1 %0, i8* %str1Ptr, i8* %str2Ptr ; <i8*> [#uses=1]
br label %bb2
bb2: ; preds = %bb2, %entry
%str2Ptr_addr.1 = phi i8* [ %str2Ptr_addr.0, %entry ], [ %1, %bb2 ] ; <i8*> [#uses=1]
%1 = getelementptr i8* %str2Ptr_addr.1, i64 1 ; <i8*> [#uses=2]
%2 = icmp ult i8* %1, %inLastBytePtr ; <i1> [#uses=0]
br i1 undef, label %bb2, label %return
return: ; preds = %bb2
ret void
}
define void @sfoo(i8* %str1Ptr, i8* %str2Ptr, i8* %inLastBytePtr) nounwind {
entry:
%0 = icmp slt i8* %str2Ptr, %str1Ptr ; <i1> [#uses=1]
%str2Ptr_addr.0 = select i1 %0, i8* %str1Ptr, i8* %str2Ptr ; <i8*> [#uses=1]
br label %bb2
bb2: ; preds = %bb2, %entry
%str2Ptr_addr.1 = phi i8* [ %str2Ptr_addr.0, %entry ], [ %1, %bb2 ] ; <i8*> [#uses=1]
%1 = getelementptr i8* %str2Ptr_addr.1, i64 1 ; <i8*> [#uses=2]
%2 = icmp slt i8* %1, %inLastBytePtr ; <i1> [#uses=0]
br i1 undef, label %bb2, label %return
return: ; preds = %bb2
ret void
}

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; RUN: opt < %s -indvars -S | grep indvar
@G = global i32* null ; <i32**> [#uses=1]
@Array = external global [40 x i32] ; <[40 x i32]*> [#uses=1]
define void @test() {
; <label>:0
br label %Loop
Loop: ; preds = %Loop, %0
%X = phi i32* [ getelementptr ([40 x i32]* @Array, i64 0, i64 0), %0 ], [ %X.next, %Loop ] ; <i32*> [#uses=2]
%X.next = getelementptr i32* %X, i64 1 ; <i32*> [#uses=1]
store i32* %X, i32** @G
br label %Loop
}

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; RUN: opt < %s -indvars -S > %t
; RUN: grep {%exitcond = icmp eq i64 %indvar.next, %n} %t
; RUN: grep {getelementptr i8\\* %A, i64 %indvar} %t
; RUN: grep getelementptr %t | count 1
; RUN: grep add %t | count 1
; RUN: not grep scevgep %t
; RUN: not grep ptrtoint %t
; Indvars should be able to expand the pointer-arithmetic
; IV into an integer IV indexing into a simple getelementptr.
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-n:32:64"
define void @foo(i8* %A, i64 %n) nounwind {
entry:
%0 = icmp eq i64 %n, 0 ; <i1> [#uses=1]
br i1 %0, label %return, label %bb.nph
bb.nph: ; preds = %entry
%1 = getelementptr i8* %A, i64 %n ; <i8*> [#uses=1]
br label %bb
bb: ; preds = %bb1, %bb.nph
%q.01 = phi i8* [ %2, %bb1 ], [ %A, %bb.nph ] ; <i8*> [#uses=2]
store i8 0, i8* %q.01, align 1
%2 = getelementptr i8* %q.01, i64 1 ; <i8*> [#uses=2]
br label %bb1
bb1: ; preds = %bb
%3 = icmp eq i8* %1, %2 ; <i1> [#uses=1]
br i1 %3, label %bb1.return_crit_edge, label %bb
bb1.return_crit_edge: ; preds = %bb1
br label %return
return: ; preds = %bb1.return_crit_edge, %entry
ret void
}

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; RUN: opt < %s -indvars -S | grep indvar
@G = global i64 0 ; <i64*> [#uses=1]
define void @test(i64 %V) {
; <label>:0
br label %Loop
Loop: ; preds = %Loop, %0
%X = phi i64 [ 1, %0 ], [ %X.next, %Loop ] ; <i64> [#uses=2]
%X.next = sub i64 %X, %V ; <i64> [#uses=1]
store i64 %X, i64* @G
br label %Loop
}