diff options
| -rw-r--r-- | llvm/test/Transforms/IndVarSimplify/full_widening.ll | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/llvm/test/Transforms/IndVarSimplify/full_widening.ll b/llvm/test/Transforms/IndVarSimplify/full_widening.ll new file mode 100644 index 00000000000..bdcde6a296f --- /dev/null +++ b/llvm/test/Transforms/IndVarSimplify/full_widening.ll @@ -0,0 +1,44 @@ +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py +; RUN: opt < %s -indvars -S | FileCheck %s + +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-n8:16:32:64" + +; Make sure that we do not insert trunc in the loop. +define i32 @test_01(double* %p, double %x, i32* %np, i32* %mp, i32 %k) { +; CHECK-LABEL: @test_01( +; CHECK-NEXT: entry: +; CHECK-NEXT: [[TMP0:%.*]] = sext i32 [[K:%.*]] to i64 +; CHECK-NEXT: br label [[LOOP:%.*]] +; CHECK: loop: +; CHECK-NEXT: [[IV_WIDE:%.*]] = phi i64 [ [[CANONICAL_IV_NEXT_I:%.*]], [[LOOP]] ], [ 0, [[ENTRY:%.*]] ] +; CHECK-NEXT: [[CANONICAL_IV_NEXT_I]] = add nuw nsw i64 [[IV_WIDE]], 1 +; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds double, double* [[P:%.*]], i64 [[IV_WIDE]] +; CHECK-NEXT: [[LOAD:%.*]] = load atomic double, double* [[GEP]] unordered, align 8 +; CHECK-NEXT: [[MUL:%.*]] = fmul double [[X:%.*]], [[LOAD]] +; CHECK-NEXT: [[GEP2:%.*]] = getelementptr inbounds double, double* [[P]], i64 [[IV_WIDE]] +; CHECK-NEXT: store atomic double [[MUL]], double* [[GEP2]] unordered, align 8 +; CHECK-NEXT: [[LOOP_COND:%.*]] = icmp slt i64 [[CANONICAL_IV_NEXT_I]], [[TMP0]] +; CHECK-NEXT: br i1 [[LOOP_COND]], label [[LOOP]], label [[EXIT:%.*]] +; CHECK: exit: +; CHECK-NEXT: ret i32 0 +; +entry: + br label %loop + +loop: + %iv.wide = phi i64 [ %canonical.iv.next.i, %loop ], [ 0, %entry ] + %iv.narrow = phi i32 [ %iv.narrow.next, %loop ], [ 0, %entry ] + %canonical.iv.next.i = add nuw nsw i64 %iv.wide, 1 + %zext = zext i32 %iv.narrow to i64 + %gep = getelementptr inbounds double, double* %p, i64 %zext + %load = load atomic double, double* %gep unordered, align 8 + %mul = fmul double %x, %load + %gep2 = getelementptr inbounds double, double* %p, i64 %zext + store atomic double %mul, double* %gep2 unordered, align 8 + %iv.narrow.next = add nuw nsw i32 %iv.narrow, 1 + %loop.cond = icmp slt i32 %iv.narrow.next, %k + br i1 %loop.cond, label %loop, label %exit + +exit: + ret i32 0 +} |
