diff options
Diffstat (limited to 'llvm/test/Transforms/LoopVectorize/X86/reg-usage.ll')
-rw-r--r-- | llvm/test/Transforms/LoopVectorize/X86/reg-usage.ll | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/llvm/test/Transforms/LoopVectorize/X86/reg-usage.ll b/llvm/test/Transforms/LoopVectorize/X86/reg-usage.ll deleted file mode 100644 index 9b276aa2bd7..00000000000 --- a/llvm/test/Transforms/LoopVectorize/X86/reg-usage.ll +++ /dev/null @@ -1,135 +0,0 @@ -; RUN: opt < %s -debug-only=loop-vectorize -loop-vectorize -vectorizer-maximize-bandwidth -O2 -mtriple=x86_64-unknown-linux -S 2>&1 | FileCheck %s -; RUN: opt < %s -debug-only=loop-vectorize -loop-vectorize -vectorizer-maximize-bandwidth -O2 -mtriple=x86_64-unknown-linux -mattr=+avx512f -S 2>&1 | FileCheck %s --check-prefix=AVX512F -; REQUIRES: asserts - -@a = global [1024 x i8] zeroinitializer, align 16 -@b = global [1024 x i8] zeroinitializer, align 16 - -define i32 @foo() { -; This function has a loop of SAD pattern. Here we check when VF = 16 the -; register usage doesn't exceed 16. -; -; CHECK-LABEL: foo -; CHECK: LV(REG): VF = 8 -; CHECK-NEXT: LV(REG): Found max usage: 7 -; CHECK: LV(REG): VF = 16 -; CHECK-NEXT: LV(REG): Found max usage: 13 - -entry: - br label %for.body - -for.cond.cleanup: - %add.lcssa = phi i32 [ %add, %for.body ] - ret i32 %add.lcssa - -for.body: - %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] - %s.015 = phi i32 [ 0, %entry ], [ %add, %for.body ] - %arrayidx = getelementptr inbounds [1024 x i8], [1024 x i8]* @a, i64 0, i64 %indvars.iv - %0 = load i8, i8* %arrayidx, align 1 - %conv = zext i8 %0 to i32 - %arrayidx2 = getelementptr inbounds [1024 x i8], [1024 x i8]* @b, i64 0, i64 %indvars.iv - %1 = load i8, i8* %arrayidx2, align 1 - %conv3 = zext i8 %1 to i32 - %sub = sub nsw i32 %conv, %conv3 - %ispos = icmp sgt i32 %sub, -1 - %neg = sub nsw i32 0, %sub - %2 = select i1 %ispos, i32 %sub, i32 %neg - %add = add nsw i32 %2, %s.015 - %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 - %exitcond = icmp eq i64 %indvars.iv.next, 1024 - br i1 %exitcond, label %for.cond.cleanup, label %for.body -} - -define i32 @goo() { -; For indvars.iv used in a computating chain only feeding into getelementptr or cmp, -; it will not have vector version and the vector register usage will not exceed the -; available vector register number. -; CHECK-LABEL: goo -; CHECK: LV(REG): VF = 8 -; CHECK-NEXT: LV(REG): Found max usage: 7 -; CHECK: LV(REG): VF = 16 -; CHECK-NEXT: LV(REG): Found max usage: 13 -entry: - br label %for.body - -for.cond.cleanup: ; preds = %for.body - %add.lcssa = phi i32 [ %add, %for.body ] - ret i32 %add.lcssa - -for.body: ; preds = %for.body, %entry - %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] - %s.015 = phi i32 [ 0, %entry ], [ %add, %for.body ] - %tmp1 = add nsw i64 %indvars.iv, 3 - %arrayidx = getelementptr inbounds [1024 x i8], [1024 x i8]* @a, i64 0, i64 %tmp1 - %tmp = load i8, i8* %arrayidx, align 1 - %conv = zext i8 %tmp to i32 - %tmp2 = add nsw i64 %indvars.iv, 2 - %arrayidx2 = getelementptr inbounds [1024 x i8], [1024 x i8]* @b, i64 0, i64 %tmp2 - %tmp3 = load i8, i8* %arrayidx2, align 1 - %conv3 = zext i8 %tmp3 to i32 - %sub = sub nsw i32 %conv, %conv3 - %ispos = icmp sgt i32 %sub, -1 - %neg = sub nsw i32 0, %sub - %tmp4 = select i1 %ispos, i32 %sub, i32 %neg - %add = add nsw i32 %tmp4, %s.015 - %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 - %exitcond = icmp eq i64 %indvars.iv.next, 1024 - br i1 %exitcond, label %for.cond.cleanup, label %for.body -} - -define i64 @bar(i64* nocapture %a) { -; CHECK-LABEL: bar -; CHECK: LV(REG): VF = 2 -; CHECK: LV(REG): Found max usage: 3 -; -entry: - br label %for.body - -for.cond.cleanup: - %add2.lcssa = phi i64 [ %add2, %for.body ] - ret i64 %add2.lcssa - -for.body: - %i.012 = phi i64 [ 0, %entry ], [ %inc, %for.body ] - %s.011 = phi i64 [ 0, %entry ], [ %add2, %for.body ] - %arrayidx = getelementptr inbounds i64, i64* %a, i64 %i.012 - %0 = load i64, i64* %arrayidx, align 8 - %add = add nsw i64 %0, %i.012 - store i64 %add, i64* %arrayidx, align 8 - %add2 = add nsw i64 %add, %s.011 - %inc = add nuw nsw i64 %i.012, 1 - %exitcond = icmp eq i64 %inc, 1024 - br i1 %exitcond, label %for.cond.cleanup, label %for.body -} - -@d = external global [0 x i64], align 8 -@e = external global [0 x i32], align 4 -@c = external global [0 x i32], align 4 - -define void @hoo(i32 %n) { -; For c[i] = e[d[i]] in the loop, e[d[i]] is not consecutive but its index %tmp can -; be gathered into a vector. For VF == 16, the vector version of %tmp will be <16 x i64> -; so the max usage of AVX512 vector register will be 2. -; AVX512F-LABEL: bar -; AVX512F: LV(REG): VF = 16 -; AVX512F: LV(REG): Found max usage: 2 -; -entry: - br label %for.body - -for.body: ; preds = %for.body, %entry - %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] - %arrayidx = getelementptr inbounds [0 x i64], [0 x i64]* @d, i64 0, i64 %indvars.iv - %tmp = load i64, i64* %arrayidx, align 8 - %arrayidx1 = getelementptr inbounds [0 x i32], [0 x i32]* @e, i64 0, i64 %tmp - %tmp1 = load i32, i32* %arrayidx1, align 4 - %arrayidx3 = getelementptr inbounds [0 x i32], [0 x i32]* @c, i64 0, i64 %indvars.iv - store i32 %tmp1, i32* %arrayidx3, align 4 - %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 - %exitcond = icmp eq i64 %indvars.iv.next, 10000 - br i1 %exitcond, label %for.end, label %for.body - -for.end: ; preds = %for.body - ret void -} |