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-rw-r--r--test/Transforms/LICM/scalar_promote.ll125
1 files changed, 81 insertions, 44 deletions
diff --git a/test/Transforms/LICM/scalar_promote.ll b/test/Transforms/LICM/scalar_promote.ll
index 05a64d6322..e7eab92aa8 100644
--- a/test/Transforms/LICM/scalar_promote.ll
+++ b/test/Transforms/LICM/scalar_promote.ll
@@ -1,28 +1,28 @@
-; RUN: opt < %s -basicaa -licm -S | FileCheck %s
+; RUN: opt < %s -basicaa -tbaa -licm -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"
-@X = global i32 7 ; <i32*> [#uses=4]
+@X = global i32 7 ; <i32*> [#uses=4]
define void @test1(i32 %i) {
Entry:
- br label %Loop
+ br label %Loop
; CHECK: @test1
; CHECK: Entry:
; CHECK-NEXT: load i32* @X
; CHECK-NEXT: br label %Loop
-Loop: ; preds = %Loop, %0
- %j = phi i32 [ 0, %Entry ], [ %Next, %Loop ] ; <i32> [#uses=1]
- %x = load i32* @X ; <i32> [#uses=1]
- %x2 = add i32 %x, 1 ; <i32> [#uses=1]
- store i32 %x2, i32* @X
- %Next = add i32 %j, 1 ; <i32> [#uses=2]
- %cond = icmp eq i32 %Next, 0 ; <i1> [#uses=1]
- br i1 %cond, label %Out, label %Loop
+Loop: ; preds = %Loop, %0
+ %j = phi i32 [ 0, %Entry ], [ %Next, %Loop ] ; <i32> [#uses=1]
+ %x = load i32* @X ; <i32> [#uses=1]
+ %x2 = add i32 %x, 1 ; <i32> [#uses=1]
+ store i32 %x2, i32* @X
+ %Next = add i32 %j, 1 ; <i32> [#uses=2]
+ %cond = icmp eq i32 %Next, 0 ; <i1> [#uses=1]
+ br i1 %cond, label %Out, label %Loop
-Out:
- ret void
+Out:
+ ret void
; CHECK: Out:
; CHECK-NEXT: store i32 %x2, i32* @X
; CHECK-NEXT: ret void
@@ -31,22 +31,22 @@ Out:
define void @test2(i32 %i) {
Entry:
- br label %Loop
+ br label %Loop
; CHECK: @test2
; CHECK: Entry:
; CHECK-NEXT: %.promoted = load i32* getelementptr inbounds (i32* @X, i64 1)
; CHECK-NEXT: br label %Loop
-Loop: ; preds = %Loop, %0
- %X1 = getelementptr i32* @X, i64 1 ; <i32*> [#uses=1]
- %A = load i32* %X1 ; <i32> [#uses=1]
- %V = add i32 %A, 1 ; <i32> [#uses=1]
- %X2 = getelementptr i32* @X, i64 1 ; <i32*> [#uses=1]
- store i32 %V, i32* %X2
- br i1 false, label %Loop, label %Exit
+Loop: ; preds = %Loop, %0
+ %X1 = getelementptr i32* @X, i64 1 ; <i32*> [#uses=1]
+ %A = load i32* %X1 ; <i32> [#uses=1]
+ %V = add i32 %A, 1 ; <i32> [#uses=1]
+ %X2 = getelementptr i32* @X, i64 1 ; <i32*> [#uses=1]
+ store i32 %V, i32* %X2
+ br i1 false, label %Loop, label %Exit
-Exit: ; preds = %Loop
- ret void
+Exit: ; preds = %Loop
+ ret void
; CHECK: Exit:
; CHECK-NEXT: store i32 %V, i32* getelementptr inbounds (i32* @X, i64 1)
; CHECK-NEXT: ret void
@@ -56,19 +56,19 @@ Exit: ; preds = %Loop
define void @test3(i32 %i) {
; CHECK: @test3
- br label %Loop
+ br label %Loop
Loop:
; Should not promote this to a register
- %x = load volatile i32* @X
- %x2 = add i32 %x, 1
- store i32 %x2, i32* @X
- br i1 true, label %Out, label %Loop
-
+ %x = load volatile i32* @X
+ %x2 = add i32 %x, 1
+ store i32 %x2, i32* @X
+ br i1 true, label %Out, label %Loop
+
; CHECK: Loop:
; CHECK-NEXT: load volatile
-Out: ; preds = %Loop
- ret void
+Out: ; preds = %Loop
+ ret void
}
; PR8041
@@ -120,27 +120,27 @@ exit:
define void @test5(i32 %i, i32** noalias %P2) {
Entry:
- br label %Loop
+ br label %Loop
; CHECK: @test5
; CHECK: Entry:
; CHECK-NEXT: load i32* @X
; CHECK-NEXT: br label %Loop
-Loop: ; preds = %Loop, %0
- %j = phi i32 [ 0, %Entry ], [ %Next, %Loop ] ; <i32> [#uses=1]
- %x = load i32* @X ; <i32> [#uses=1]
- %x2 = add i32 %x, 1 ; <i32> [#uses=1]
- store i32 %x2, i32* @X
-
+Loop: ; preds = %Loop, %0
+ %j = phi i32 [ 0, %Entry ], [ %Next, %Loop ] ; <i32> [#uses=1]
+ %x = load i32* @X ; <i32> [#uses=1]
+ %x2 = add i32 %x, 1 ; <i32> [#uses=1]
+ store i32 %x2, i32* @X
+
store volatile i32* @X, i32** %P2
-
- %Next = add i32 %j, 1 ; <i32> [#uses=2]
- %cond = icmp eq i32 %Next, 0 ; <i1> [#uses=1]
- br i1 %cond, label %Out, label %Loop
-Out:
- ret void
+ %Next = add i32 %j, 1 ; <i32> [#uses=2]
+ %cond = icmp eq i32 %Next, 0 ; <i1> [#uses=1]
+ br i1 %cond, label %Out, label %Loop
+
+Out:
+ ret void
; CHECK: Out:
; CHECK-NEXT: store i32 %x2, i32* @X
; CHECK-NEXT: ret void
@@ -148,3 +148,40 @@ Out:
}
+; PR14753 - Preserve TBAA tags when promoting values in a loop.
+define void @test6(i32 %n, float* nocapture %a, i32* %gi) {
+entry:
+ store i32 0, i32* %gi, align 4, !tbaa !0
+ %cmp1 = icmp slt i32 0, %n
+ br i1 %cmp1, label %for.body.lr.ph, label %for.end
+
+for.body.lr.ph: ; preds = %entry
+ br label %for.body
+
+for.body: ; preds = %for.body.lr.ph, %for.body
+ %storemerge2 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.body ]
+ %idxprom = sext i32 %storemerge2 to i64
+ %arrayidx = getelementptr inbounds float* %a, i64 %idxprom
+ store float 0.000000e+00, float* %arrayidx, align 4, !tbaa !3
+ %0 = load i32* %gi, align 4, !tbaa !0
+ %inc = add nsw i32 %0, 1
+ store i32 %inc, i32* %gi, align 4, !tbaa !0
+ %cmp = icmp slt i32 %inc, %n
+ br i1 %cmp, label %for.body, label %for.cond.for.end_crit_edge
+
+for.cond.for.end_crit_edge: ; preds = %for.body
+ br label %for.end
+
+for.end: ; preds = %for.cond.for.end_crit_edge, %entry
+ ret void
+
+; CHECK: for.body.lr.ph:
+; CHECK-NEXT: %gi.promoted = load i32* %gi, align 4, !tbaa !0
+; CHECK: for.cond.for.end_crit_edge:
+; CHECK-NEXT: store i32 %inc, i32* %gi, align 4, !tbaa !0
+}
+
+!0 = metadata !{metadata !"int", metadata !1}
+!1 = metadata !{metadata !"omnipotent char", metadata !2}
+!2 = metadata !{metadata !"Simple C/C++ TBAA"}
+!3 = metadata !{metadata !"float", metadata !1}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-22 03:55:21 +0000