diff options
Diffstat (limited to 'llvm/test/Transforms/LoopVectorize/i8-induction.ll')
| -rw-r--r-- | llvm/test/Transforms/LoopVectorize/i8-induction.ll | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/llvm/test/Transforms/LoopVectorize/i8-induction.ll b/llvm/test/Transforms/LoopVectorize/i8-induction.ll new file mode 100644 index 00000000000..a9e8b755f18 --- /dev/null +++ b/llvm/test/Transforms/LoopVectorize/i8-induction.ll @@ -0,0 +1,40 @@ +; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -dce -instcombine -S +; RUN: opt < %s -debugify -loop-vectorize -S | FileCheck %s --check-prefix=DEBUGLOC + +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-S128" + +@a = common global i8 0, align 1 +@b = common global i8 0, align 1 + +define void @f() nounwind uwtable ssp { +; Check that the induction phis and adds have debug location. +; +; DEBUGLOC-LABEL: vector.body: +; DEBUGLOC: %vec.ind = phi {{.*}}, !dbg ![[DbgLoc:[0-9]+]] +; DEBUGLOC: %vec.ind.next = add {{.*}}, !dbg ![[DbgLoc]] + +scalar.ph: + store i8 0, i8* inttoptr (i64 1 to i8*), align 1 + %0 = load i8, i8* @a, align 1 + br label %for.body + +for.body: + %mul16 = phi i8 [ 0, %scalar.ph ], [ %mul, %for.body ] ; <------- i8 induction var. + %c.015 = phi i8 [ undef, %scalar.ph ], [ %conv8, %for.body ] + %conv2 = sext i8 %c.015 to i32 + %tobool = icmp ne i8 %c.015, 0 + %.sink = select i1 %tobool, i8 %c.015, i8 %0 + %mul = mul i8 %mul16, %.sink + %add = add nsw i32 %conv2, 1 + %conv8 = trunc i32 %add to i8 + %sext = shl i32 %add, 24 + %phitmp14 = icmp slt i32 %sext, 268435456 + br i1 %phitmp14, label %for.body, label %for.end + +for.end: ; preds = %for.body + store i8 %mul, i8* @b, align 1 + ret void +} + +; Check that the location of the new phi comes from %c.015 = phi i8 +; DEBUGLOC: ![[DbgLoc]] = !DILocation(line: 5 |
