You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
54 lines
2.5 KiB
54 lines
2.5 KiB
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt -S -gvn < %s | FileCheck %s
|
|
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
; The load in the loop can not bypass the data from the previous loop. The store above it in the loop aliases.
|
|
define void @foo() {
|
|
; CHECK-LABEL: @foo(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[A:%.*]] = alloca [3 x i32], align 4
|
|
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
|
|
; CHECK: for.cond.cleanup:
|
|
; CHECK-NEXT: ret void
|
|
; CHECK: for.body:
|
|
; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 1, [[ENTRY:%.*]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ]
|
|
; CHECK-NEXT: [[P_017:%.*]] = phi i32* [ undef, [[ENTRY]] ], [ [[ARRAYIDX3:%.*]], [[FOR_BODY]] ]
|
|
; CHECK-NEXT: [[TMP0:%.*]] = add nsw i64 [[INDVARS_IV]], -1
|
|
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [3 x i32], [3 x i32]* [[A]], i64 0, i64 [[TMP0]]
|
|
; CHECK-NEXT: store i32 50, i32* [[ARRAYIDX]], align 4
|
|
; CHECK-NEXT: [[TMP1:%.*]] = shl i64 [[INDVARS_IV]], 1
|
|
; CHECK-NEXT: [[TMP2:%.*]] = load i32, i32* [[P_017]], align 4
|
|
; CHECK-NEXT: [[TMP3:%.*]] = trunc i64 [[TMP1]] to i32
|
|
; CHECK-NEXT: [[ADD1:%.*]] = add nsw i32 [[TMP2]], [[TMP3]]
|
|
; CHECK-NEXT: [[ARRAYIDX3]] = getelementptr inbounds [3 x i32], [3 x i32]* [[A]], i64 0, i64 [[INDVARS_IV]]
|
|
; CHECK-NEXT: store i32 60, i32* [[ARRAYIDX3]], align 4
|
|
; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
|
|
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT]], 3
|
|
; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_COND_CLEANUP:%.*]]
|
|
;
|
|
entry:
|
|
%a = alloca [3 x i32], align 4
|
|
br label %for.body
|
|
|
|
for.cond.cleanup: ; preds = %for.body
|
|
ret void
|
|
|
|
for.body: ; preds = %for.body, %entry
|
|
%indvars.iv = phi i64 [ 1, %entry ], [ %indvars.iv.next, %for.body ]
|
|
%p.017 = phi i32* [ undef, %entry ], [ %arrayidx3, %for.body ]
|
|
%0 = add nsw i64 %indvars.iv, -1
|
|
%arrayidx = getelementptr inbounds [3 x i32], [3 x i32]* %a, i64 0, i64 %0
|
|
store i32 50, i32* %arrayidx, align 4
|
|
%1 = shl i64 %indvars.iv, 1
|
|
%2 = load i32, i32* %p.017, align 4
|
|
%3 = trunc i64 %1 to i32
|
|
%add1 = add nsw i32 %2, %3
|
|
%arrayidx3 = getelementptr inbounds [3 x i32], [3 x i32]* %a, i64 0, i64 %indvars.iv
|
|
store i32 60, i32* %arrayidx3, align 4
|
|
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
|
|
%exitcond = icmp ne i64 %indvars.iv.next, 3
|
|
br i1 %exitcond, label %for.body, label %for.cond.cleanup
|
|
}
|