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enables SelectionDAG::getLoad at MipsISelLowering.cpp:1914 to return a pre-existing node instead of redundantly create a new node every time it is called. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133811 91177308-0d34-0410-b5e6-96231b3b80d8
99 lines
3.5 KiB
LLVM
99 lines
3.5 KiB
LLVM
; RUN: llc -march=mipsel -mcpu=4ke < %s | FileCheck %s
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define i32 @twoalloca(i32 %size) nounwind {
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entry:
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; CHECK: subu $[[T0:[0-9]+]], $sp, $[[SZ:[0-9]+]]
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; CHECK: addu $sp, $zero, $[[T0]]
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; CHECK: addiu $[[T1:[0-9]+]], $sp, [[OFF:[0-9]+]]
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; CHECK: subu $[[T2:[0-9]+]], $sp, $[[SZ]]
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; CHECK: addu $sp, $zero, $[[T2]]
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; CHECK: addiu $[[T3:[0-9]+]], $sp, [[OFF]]
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; CHECK: lw $[[T4:[0-9]+]], %call16(foo)($gp)
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; CHECK: addu $25, $zero, $[[T4]]
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; CHECK: addu $4, $zero, $[[T1]]
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; CHECK: jalr $25
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%tmp1 = alloca i8, i32 %size, align 4
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%add.ptr = getelementptr inbounds i8* %tmp1, i32 5
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store i8 97, i8* %add.ptr, align 1
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%tmp4 = alloca i8, i32 %size, align 4
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call void @foo2(double 1.000000e+00, double 2.000000e+00, i32 3) nounwind
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%call = call i32 @foo(i8* %tmp1) nounwind
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%call7 = call i32 @foo(i8* %tmp4) nounwind
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%add = add nsw i32 %call7, %call
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ret i32 %add
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}
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declare void @foo2(double, double, i32)
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declare i32 @foo(i8*)
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@.str = private unnamed_addr constant [22 x i8] c"%d %d %d %d %d %d %d\0A\00", align 1
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define i32 @alloca2(i32 %size) nounwind {
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entry:
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; dynamic allocated stack area and $gp restore slot have the same offsets
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; relative to $sp.
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;
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; CHECK: alloca2
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; CHECK: .cprestore [[OFF:[0-9]+]]
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; CHECK: subu $[[T0:[0-9]+]], $sp, $[[SZ:[0-9]+]]
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; CHECK: addu $sp, $zero, $[[T0]]
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; CHECK: addiu $[[T1:[0-9]+]], $sp, [[OFF]]
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%tmp1 = alloca i8, i32 %size, align 4
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%0 = bitcast i8* %tmp1 to i32*
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%cmp = icmp sgt i32 %size, 10
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br i1 %cmp, label %if.then, label %if.else
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if.then: ; preds = %entry
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; CHECK: addiu $4, $[[T1]], 40
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%add.ptr = getelementptr inbounds i8* %tmp1, i32 40
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%1 = bitcast i8* %add.ptr to i32*
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call void @foo3(i32* %1) nounwind
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%arrayidx15.pre = getelementptr inbounds i8* %tmp1, i32 12
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%.pre = bitcast i8* %arrayidx15.pre to i32*
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br label %if.end
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if.else: ; preds = %entry
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; CHECK: addiu $4, $[[T1]], 12
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%add.ptr5 = getelementptr inbounds i8* %tmp1, i32 12
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%2 = bitcast i8* %add.ptr5 to i32*
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call void @foo3(i32* %2) nounwind
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br label %if.end
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if.end: ; preds = %if.else, %if.then
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; CHECK: lw $5, 0($[[T1]])
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; CHECK: lw $25, %call16(printf)
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%.pre-phi = phi i32* [ %2, %if.else ], [ %.pre, %if.then ]
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%tmp7 = load i32* %0, align 4, !tbaa !0
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%arrayidx9 = getelementptr inbounds i8* %tmp1, i32 4
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%3 = bitcast i8* %arrayidx9 to i32*
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%tmp10 = load i32* %3, align 4, !tbaa !0
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%arrayidx12 = getelementptr inbounds i8* %tmp1, i32 8
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%4 = bitcast i8* %arrayidx12 to i32*
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%tmp13 = load i32* %4, align 4, !tbaa !0
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%tmp16 = load i32* %.pre-phi, align 4, !tbaa !0
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%arrayidx18 = getelementptr inbounds i8* %tmp1, i32 16
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%5 = bitcast i8* %arrayidx18 to i32*
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%tmp19 = load i32* %5, align 4, !tbaa !0
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%arrayidx21 = getelementptr inbounds i8* %tmp1, i32 20
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%6 = bitcast i8* %arrayidx21 to i32*
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%tmp22 = load i32* %6, align 4, !tbaa !0
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%arrayidx24 = getelementptr inbounds i8* %tmp1, i32 24
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%7 = bitcast i8* %arrayidx24 to i32*
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%tmp25 = load i32* %7, align 4, !tbaa !0
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%call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([22 x i8]* @.str, i32 0, i32 0), i32 %tmp7, i32 %tmp10, i32 %tmp13, i32 %tmp16, i32 %tmp19, i32 %tmp22, i32 %tmp25) nounwind
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ret i32 0
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}
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declare void @foo3(i32*)
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declare i32 @printf(i8* nocapture, ...) nounwind
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!0 = metadata !{metadata !"int", metadata !1}
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!1 = metadata !{metadata !"omnipotent char", metadata !2}
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!2 = metadata !{metadata !"Simple C/C++ TBAA", null}
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