llvm-project/polly/test/Isl/CodeGen/phi_condition_modeling_2.ll

67 lines
2.0 KiB
LLVM

; RUN: opt %loadPolly -S -polly-codegen < %s | FileCheck %s
;
; void f(int *A, int c, int N) {
; int tmp;
; for (int i = 0; i < N; i++) {
; if (i > c)
; tmp = 3;
; else
; tmp = 5;
; A[i] = tmp;
; }
; }
;
; CHECK-LABEL: bb:
; CHECK-DAG: %tmp.0.s2a = alloca i32
; CHECK-DAG: %tmp.0.phiops = alloca i32
; CHECK-LABEL: polly.stmt.bb8:
; CHECK: %tmp.0.phiops.reload = load i32, i32* %tmp.0.phiops
; CHECK: store i32 %tmp.0.phiops.reload, i32* %tmp.0.s2a
; CHECK-LABEL: polly.stmt.bb8b:
; CHECK: %tmp.0.s2a.reload = load i32, i32* %tmp.0.s2a
; CHECK: store i32 %tmp.0.s2a.reload,
; CHECK-LABEL: polly.stmt.bb7:
; CHECK: store i32 5, i32* %tmp.0.phiops
; CHECK-LABEL: polly.stmt.bb6:
; CHECK: store i32 3, i32* %tmp.0.phiops
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @f(i32* %A, i32 %c, i32 %N) {
bb:
%tmp = sext i32 %N to i64
%tmp1 = sext i32 %c to i64
br label %bb2
bb2: ; preds = %bb10, %bb
%indvars.iv = phi i64 [ %indvars.iv.next, %bb10 ], [ 0, %bb ]
%tmp3 = icmp slt i64 %indvars.iv, %tmp
br i1 %tmp3, label %bb4, label %bb11
bb4: ; preds = %bb2
%tmp5 = icmp sgt i64 %indvars.iv, %tmp1
br i1 %tmp5, label %bb6, label %bb7
bb6: ; preds = %bb4
br label %bb8
bb7: ; preds = %bb4
br label %bb8
bb8: ; preds = %bb7, %bb6
%tmp.0 = phi i32 [ 3, %bb6 ], [ 5, %bb7 ]
br label %bb8b
bb8b:
%tmp9 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
store i32 %tmp.0, i32* %tmp9, align 4
br label %bb10
bb10: ; preds = %bb8
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
br label %bb2
bb11: ; preds = %bb2
ret void
}