98 lines
3.1 KiB
LLVM
98 lines
3.1 KiB
LLVM
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; RUN: opt -basic-aa -print-memoryssa -dot-cfg-mssa=out.dot -enable-new-pm=0 -analyze < %s 2>&1 > /dev/null
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;RUN: FileCheck %s -input-file=out.dot
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; RUN: opt -aa-pipeline=basic-aa -passes='print<memoryssa>' -dot-cfg-mssa=out.dot < %s 2>&1 > /dev/null
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;RUN: FileCheck %s -input-file=out.dot
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; Test -dot-cfg-mssa option for -print-memoryssa.
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; Test is based on following C code with some forwarding basic blocks
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; added to show that only those blocks with memory ssa comments
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; are colourized.
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;void g();
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;int f(int *p, int *q, int *r) {
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; int i = 0;
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; if (*r)
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; i = 1;
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; else
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; g();
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; *p = *q + 1;
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; if (i)
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; ++i;
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; return *q;
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;}
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define signext i32 @f(i32* %p, i32* %q, i32* %r) {
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entry:
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br label %bb1
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bb1:
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%p.addr = alloca i32*, align 8
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%q.addr = alloca i32*, align 8
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%r.addr = alloca i32*, align 8
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%i = alloca i32, align 4
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store i32* %p, i32** %p.addr, align 8
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store i32* %q, i32** %q.addr, align 8
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store i32* %r, i32** %r.addr, align 8
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%0 = bitcast i32* %i to i8*
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store i32 0, i32* %i, align 4
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%1 = load i32*, i32** %r.addr, align 8
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%2 = load i32, i32* %1, align 4
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%tobool = icmp ne i32 %2, 0
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br i1 %tobool, label %if.then, label %if.else
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if.then:
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store i32 1, i32* %i, align 4
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br label %bb2
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bb2:
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br label %if.end
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if.else:
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call void bitcast (void (...)* @g to void ()*)()
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br label %if.end
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if.end:
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%3 = load i32*, i32** %q.addr, align 8
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%4 = load i32, i32* %3, align 4
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%add = add nsw i32 %4, 1
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%5 = load i32*, i32** %p.addr, align 8
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store i32 %add, i32* %5, align 4
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%6 = load i32, i32* %i, align 4
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%tobool1 = icmp ne i32 %6, 0
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br i1 %tobool1, label %if.then2, label %if.end3
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if.then2:
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%7 = load i32, i32* %i, align 4
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%inc = add nsw i32 %7, 1
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br label %bb3
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bb3:
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store i32 %inc, i32* %i, align 4
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br label %if.end3
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if.end3:
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br label %bb4
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bb4:
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%8 = load i32*, i32** %q.addr, align 8
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%9 = load i32, i32* %8, align 4
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%10 = bitcast i32* %i to i8*
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ret i32 %9
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}
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declare void @g(...)
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; CHECK: digraph "MSSA"
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; CHECK-NEXT: label="MSSA";
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; CHECK: {{Node0x.* [shape=record,label="{entry:.*}"]}}
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; CHECK: {{[shape=record,style=filled, fillcolor=lightpink,label="{bb1:.*1 = MemoryDef(liveOnEntry).*2 = MemoryDef(1).*3 = MemoryDef(2).*4 = MemoryDef(3).*MemoryUse(3).*MemoryUse(liveOnEntry).*}"]}}
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; CHECK {{[shape=record,style=filled, fillcolor=lightpink,label="{if.then:.*5 = MemoryDef(4).*}"]}}
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; CHECK {{[shape=record,label="{bb2:.*}"]}}
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; CHECK {{[shape=record,style=filled, fillcolor=lightpink,label="{if.else:.*6 = MemoryDef(4).*}"]}}
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; CHECK {{[shape=record,style=filled, fillcolor=lightpink,label="{if.end:.*10 = MemoryPhi({bb2,5},{if.else,6})/*MemoryUse(2).*MemoryUse(10).*MemoryUse(1).*7 = MemoryDef(10).*MemoryUse(10).*}"]}}
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; CHECK {{[shape=record,style=filled, fillcolor=lightpink,label="{if.then2:.*MemoryUse(10).*}"]}}
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; CHECK {{[shape=record,style=filled, fillcolor=lightpink,label="{bb3:.*8 = MemoryDef(7).*}"]}}
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; CHECK {{[shape=record,style=filled, fillcolor=lightpink,label="{if.end3:.*9 = MemoryPhi({if.end,7},{bb3,8}).*}"]}}
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; CHECK {{[shape=record,style=filled, fillcolor=lightpink,label="{bb4:.*MemoryUse(2).*MemoryUse(7).*}"]}}
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