52 lines
1.7 KiB
LLVM
52 lines
1.7 KiB
LLVM
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; REQUIRES: asserts
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; RUN: opt -inline -mtriple=aarch64--linux-gnu -mcpu=kryo -S -debug-only=inline-cost < %s 2>&1 | FileCheck %s
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target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
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target triple = "aarch64--linux-gnu"
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define void @outer1([4 x i32]* %ptr, i32 %i) {
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call void @inner1([4 x i32]* %ptr, i32 %i)
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ret void
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}
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define void @outer2([4 x i32]* %ptr, i32 %i) {
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call void @inner2([4 x i32]* %ptr, i32 %i)
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ret void
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}
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define void @outer3([4 x i32]* %ptr, i32 %j) {
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call void @inner3([4 x i32]* %ptr, i32 0, i32 %j)
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ret void
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}
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; The gep in inner1() is reg+reg, which is a legal addressing mode for AArch64.
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; Thus, both the gep and ret can be simplified.
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; CHECK: Analyzing call of inner1
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; CHECK: NumInstructionsSimplified: 2
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; CHECK: NumInstructions: 2
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define void @inner1([4 x i32]* %ptr, i32 %i) {
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%G = getelementptr inbounds [4 x i32], [4 x i32]* %ptr, i32 0, i32 %i
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ret void
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}
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; The gep in inner2() is reg+imm+reg, which is not a legal addressing mode for
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; AArch64. Thus, only the ret can be simplified and not the gep.
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; CHECK: Analyzing call of inner2
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; CHECK: NumInstructionsSimplified: 1
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; CHECK: NumInstructions: 2
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define void @inner2([4 x i32]* %ptr, i32 %i) {
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%G = getelementptr inbounds [4 x i32], [4 x i32]* %ptr, i32 1, i32 %i
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ret void
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}
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; The gep in inner3() is reg+reg because %i is a known constant from the
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; callsite. This case is a legal addressing mode for AArch64. Thus, both the
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; gep and ret can be simplified.
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; CHECK: Analyzing call of inner3
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; CHECK: NumInstructionsSimplified: 2
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; CHECK: NumInstructions: 2
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define void @inner3([4 x i32]* %ptr, i32 %i, i32 %j) {
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%G = getelementptr inbounds [4 x i32], [4 x i32]* %ptr, i32 %i, i32 %j
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ret void
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}
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