1e7763557b
The `TTI` hooks are used during vectorization for calculating register pressure. The default implementation defined wrong value for register number (all register class are 8 registers). This patch also defines LoongArch's own register classes.
45 lines
2.2 KiB
LLVM
45 lines
2.2 KiB
LLVM
; REQUIRES: asserts
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; RUN: opt --passes=loop-vectorize --mtriple loongarch64-linux-gnu \
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; RUN: --mattr=+lsx -debug-only=loop-vectorize --force-vector-width=1 \
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; RUN: -S < %s 2>&1 | FileCheck %s --check-prefix=CHECK-SCALAR
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; RUN: opt --passes=loop-vectorize --mtriple loongarch64-linux-gnu \
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; RUN: --mattr=+lsx -debug-only=loop-vectorize --force-vector-width=4 \
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; RUN: -S < %s 2>&1 | FileCheck %s --check-prefix=CHECK-VECTOR
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define void @bar(ptr %A, i32 signext %n) {
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; CHECK-LABEL: bar
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; CHECK-SCALAR: LV(REG): Found max usage: 2 item
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; CHECK-SCALAR-NEXT: LV(REG): RegisterClass: LoongArch::GPRRC, 2 registers
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; CHECK-SCALAR-NEXT: LV(REG): RegisterClass: LoongArch::FPRRC, 1 registers
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; CHECK-SCALAR-NEXT: LV(REG): Found invariant usage: 1 item
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; CHECK-SCALAR-NEXT: LV(REG): RegisterClass: LoongArch::GPRRC, 1 registers
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; CHECK-SCALAR-NEXT: LV: The target has 30 registers of LoongArch::GPRRC register class
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; CHECK-SCALAR-NEXT: LV: The target has 32 registers of LoongArch::FPRRC register class
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; CHECK-VECTOR: LV(REG): Found max usage: 1 item
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; CHECK-VECTOR-NEXT: LV(REG): RegisterClass: LoongArch::VRRC, 3 registers
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; CHECK-VECTOR-NEXT: LV(REG): Found invariant usage: 1 item
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; CHECK-VECTOR-NEXT: LV(REG): RegisterClass: LoongArch::GPRRC, 1 registers
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; CHECK-VECTOR-NEXT: LV: The target has 32 registers of LoongArch::VRRC register class
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entry:
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%cmp4 = icmp sgt i32 %n, 0
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br i1 %cmp4, label %for.body.preheader, label %for.cond.cleanup
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for.body.preheader: ; preds = %entry
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%wide.trip.count = zext nneg i32 %n to i64
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br label %for.body
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for.cond.cleanup: ; preds = %for.body, %entry
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ret void
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for.body: ; preds = %for.body.preheader, %for.body
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%indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ]
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%0 = trunc i64 %indvars.iv to i32
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%conv = sitofp i32 %0 to float
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%arrayidx = getelementptr inbounds float, ptr %A, i64 %indvars.iv
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store float %conv, ptr %arrayidx, align 4
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
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br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
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}
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