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0f7342aa8c
Summary: This tests inlining size thresholds, but relies on the output of running the full O2 pipeline, making it brittle against changes in unrelated passes. Only run the inlining pass and set thresholds on the test RUN line instead. Found while investigating D60318. Reviewers: RKSimon, qcolombet Subscribers: llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D67349 llvm-svn: 371397
233 lines
8.0 KiB
LLVM
233 lines
8.0 KiB
LLVM
; RUN: opt -inline -inline-threshold=225 -inlinehint-threshold=360 -S < %s | FileCheck %s
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@data = common global i32* null, align 8
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define i32 @fct1(i32 %a) nounwind uwtable ssp {
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entry:
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%a.addr = alloca i32, align 4
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%res = alloca i32, align 4
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%i = alloca i32, align 4
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store i32 %a, i32* %a.addr, align 4
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%tmp = load i32, i32* %a.addr, align 4
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%idxprom = sext i32 %tmp to i64
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%tmp1 = load i32*, i32** @data, align 8
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%arrayidx = getelementptr inbounds i32, i32* %tmp1, i64 %idxprom
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%tmp2 = load i32, i32* %arrayidx, align 4
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%tmp3 = load i32, i32* %a.addr, align 4
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%add = add nsw i32 %tmp3, 1
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%idxprom1 = sext i32 %add to i64
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%tmp4 = load i32*, i32** @data, align 8
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%arrayidx2 = getelementptr inbounds i32, i32* %tmp4, i64 %idxprom1
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%tmp5 = load i32, i32* %arrayidx2, align 4
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%mul = mul nsw i32 %tmp2, %tmp5
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store i32 %mul, i32* %res, align 4
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store i32 0, i32* %i, align 4
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store i32 0, i32* %i, align 4
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br label %for.cond
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for.cond: ; preds = %for.inc, %entry
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%tmp6 = load i32, i32* %i, align 4
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%tmp7 = load i32, i32* %res, align 4
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%cmp = icmp slt i32 %tmp6, %tmp7
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br i1 %cmp, label %for.body, label %for.end
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for.body: ; preds = %for.cond
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%tmp8 = load i32, i32* %i, align 4
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%idxprom3 = sext i32 %tmp8 to i64
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%tmp9 = load i32*, i32** @data, align 8
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%arrayidx4 = getelementptr inbounds i32, i32* %tmp9, i64 %idxprom3
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call void @fct0(i32* %arrayidx4)
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br label %for.inc
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for.inc: ; preds = %for.body
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%tmp10 = load i32, i32* %i, align 4
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%inc = add nsw i32 %tmp10, 1
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store i32 %inc, i32* %i, align 4
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br label %for.cond
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for.end: ; preds = %for.cond
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store i32 0, i32* %i, align 4
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br label %for.cond5
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for.cond5: ; preds = %for.inc10, %for.end
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%tmp11 = load i32, i32* %i, align 4
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%tmp12 = load i32, i32* %res, align 4
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%cmp6 = icmp slt i32 %tmp11, %tmp12
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br i1 %cmp6, label %for.body7, label %for.end12
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for.body7: ; preds = %for.cond5
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%tmp13 = load i32, i32* %i, align 4
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%idxprom8 = sext i32 %tmp13 to i64
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%tmp14 = load i32*, i32** @data, align 8
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%arrayidx9 = getelementptr inbounds i32, i32* %tmp14, i64 %idxprom8
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call void @fct0(i32* %arrayidx9)
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br label %for.inc10
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for.inc10: ; preds = %for.body7
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%tmp15 = load i32, i32* %i, align 4
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%inc11 = add nsw i32 %tmp15, 1
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store i32 %inc11, i32* %i, align 4
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br label %for.cond5
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for.end12: ; preds = %for.cond5
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store i32 0, i32* %i, align 4
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br label %for.cond13
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for.cond13: ; preds = %for.inc18, %for.end12
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%tmp16 = load i32, i32* %i, align 4
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%tmp17 = load i32, i32* %res, align 4
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%cmp14 = icmp slt i32 %tmp16, %tmp17
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br i1 %cmp14, label %for.body15, label %for.end20
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for.body15: ; preds = %for.cond13
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%tmp18 = load i32, i32* %i, align 4
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%idxprom16 = sext i32 %tmp18 to i64
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%tmp19 = load i32*, i32** @data, align 8
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%arrayidx17 = getelementptr inbounds i32, i32* %tmp19, i64 %idxprom16
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call void @fct0(i32* %arrayidx17)
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br label %for.inc18
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for.inc18: ; preds = %for.body15
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%tmp20 = load i32, i32* %i, align 4
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%inc19 = add nsw i32 %tmp20, 1
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store i32 %inc19, i32* %i, align 4
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br label %for.cond13
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for.end20: ; preds = %for.cond13
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%tmp21 = load i32, i32* %res, align 4
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ret i32 %tmp21
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}
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declare void @fct0(i32*)
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define i32 @fct2(i32 %a) nounwind uwtable inlinehint ssp {
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entry:
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%a.addr = alloca i32, align 4
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%res = alloca i32, align 4
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%i = alloca i32, align 4
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store i32 %a, i32* %a.addr, align 4
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%tmp = load i32, i32* %a.addr, align 4
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%shl = shl i32 %tmp, 1
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%idxprom = sext i32 %shl to i64
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%tmp1 = load i32*, i32** @data, align 8
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%arrayidx = getelementptr inbounds i32, i32* %tmp1, i64 %idxprom
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%tmp2 = load i32, i32* %arrayidx, align 4
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%tmp3 = load i32, i32* %a.addr, align 4
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%shl1 = shl i32 %tmp3, 1
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%add = add nsw i32 %shl1, 13
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%idxprom2 = sext i32 %add to i64
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%tmp4 = load i32*, i32** @data, align 8
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%arrayidx3 = getelementptr inbounds i32, i32* %tmp4, i64 %idxprom2
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%tmp5 = load i32, i32* %arrayidx3, align 4
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%mul = mul nsw i32 %tmp2, %tmp5
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store i32 %mul, i32* %res, align 4
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store i32 0, i32* %i, align 4
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store i32 0, i32* %i, align 4
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br label %for.cond
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for.cond: ; preds = %for.inc, %entry
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%tmp6 = load i32, i32* %i, align 4
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%tmp7 = load i32, i32* %res, align 4
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%cmp = icmp slt i32 %tmp6, %tmp7
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br i1 %cmp, label %for.body, label %for.end
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for.body: ; preds = %for.cond
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%tmp8 = load i32, i32* %i, align 4
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%idxprom4 = sext i32 %tmp8 to i64
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%tmp9 = load i32*, i32** @data, align 8
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%arrayidx5 = getelementptr inbounds i32, i32* %tmp9, i64 %idxprom4
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call void @fct0(i32* %arrayidx5)
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br label %for.inc
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for.inc: ; preds = %for.body
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%tmp10 = load i32, i32* %i, align 4
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%inc = add nsw i32 %tmp10, 1
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store i32 %inc, i32* %i, align 4
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br label %for.cond
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for.end: ; preds = %for.cond
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store i32 0, i32* %i, align 4
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br label %for.cond6
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for.cond6: ; preds = %for.inc11, %for.end
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%tmp11 = load i32, i32* %i, align 4
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%tmp12 = load i32, i32* %res, align 4
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%cmp7 = icmp slt i32 %tmp11, %tmp12
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br i1 %cmp7, label %for.body8, label %for.end13
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for.body8: ; preds = %for.cond6
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%tmp13 = load i32, i32* %i, align 4
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%idxprom9 = sext i32 %tmp13 to i64
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%tmp14 = load i32*, i32** @data, align 8
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%arrayidx10 = getelementptr inbounds i32, i32* %tmp14, i64 %idxprom9
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call void @fct0(i32* %arrayidx10)
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br label %for.inc11
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for.inc11: ; preds = %for.body8
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%tmp15 = load i32, i32* %i, align 4
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%inc12 = add nsw i32 %tmp15, 1
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store i32 %inc12, i32* %i, align 4
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br label %for.cond6
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for.end13: ; preds = %for.cond6
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store i32 0, i32* %i, align 4
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br label %for.cond14
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for.cond14: ; preds = %for.inc19, %for.end13
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%tmp16 = load i32, i32* %i, align 4
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%tmp17 = load i32, i32* %res, align 4
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%cmp15 = icmp slt i32 %tmp16, %tmp17
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br i1 %cmp15, label %for.body16, label %for.end21
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for.body16: ; preds = %for.cond14
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%tmp18 = load i32, i32* %i, align 4
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%idxprom17 = sext i32 %tmp18 to i64
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%tmp19 = load i32*, i32** @data, align 8
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%arrayidx18 = getelementptr inbounds i32, i32* %tmp19, i64 %idxprom17
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call void @fct0(i32* %arrayidx18)
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br label %for.inc19
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for.inc19: ; preds = %for.body16
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%tmp20 = load i32, i32* %i, align 4
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%inc20 = add nsw i32 %tmp20, 1
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store i32 %inc20, i32* %i, align 4
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br label %for.cond14
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for.end21: ; preds = %for.cond14
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%tmp21 = load i32, i32* %res, align 4
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ret i32 %tmp21
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}
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define i32 @fct3(i32 %c) nounwind uwtable ssp {
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entry:
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;CHECK-LABEL: @fct3(
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;CHECK: call i32 @fct1
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; The inline keyword gives a sufficient benefits to inline fct2
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;CHECK-NOT: call i32 @fct2
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%c.addr = alloca i32, align 4
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store i32 %c, i32* %c.addr, align 4
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%tmp = load i32, i32* %c.addr, align 4
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%call = call i32 @fct1(i32 %tmp)
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%tmp1 = load i32, i32* %c.addr, align 4
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%call1 = call i32 @fct2(i32 %tmp1)
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%add = add nsw i32 %call, %call1
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ret i32 %add
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}
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define i32 @fct4(i32 %c) minsize nounwind uwtable ssp {
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entry:
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;CHECK-LABEL: @fct4(
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;CHECK: call i32 @fct1
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; With Oz (minsize attribute), the benefit of inlining fct2
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; is the same as fct1, thus no inlining for fct2
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;CHECK: call i32 @fct2
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%c.addr = alloca i32, align 4
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store i32 %c, i32* %c.addr, align 4
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%tmp = load i32, i32* %c.addr, align 4
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%call = call i32 @fct1(i32 %tmp)
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%tmp1 = load i32, i32* %c.addr, align 4
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%call1 = call i32 @fct2(i32 %tmp1)
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%add = add nsw i32 %call, %call1
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ret i32 %add
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}
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