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cdb3ba71ce
MipsSEFrameLowering. Implement MipsSEFrameLowering::hasReservedCallFrame. Call frames will not be reserved if there is a call with a large call frame or there are variable sized objects on the stack. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161090 91177308-0d34-0410-b5e6-96231b3b80d8
23 lines
707 B
LLVM
23 lines
707 B
LLVM
; RUN: llc -march=mipsel -mcpu=mips32r2 < %s | FileCheck %s
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%struct.S1 = type { [65536 x i8] }
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@s1 = external global %struct.S1
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define void @f() nounwind {
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entry:
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; CHECK: lui $at, 65535
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; CHECK: addiu $at, $at, -16
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; CHECK: addu $sp, $sp, $at
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%agg.tmp = alloca %struct.S1, align 1
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%tmp = getelementptr inbounds %struct.S1* %agg.tmp, i32 0, i32 0, i32 0
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* %tmp, i8* getelementptr inbounds (%struct.S1* @s1, i32 0, i32 0, i32 0), i32 65536, i32 1, i1 false)
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call void @f2(%struct.S1* byval %agg.tmp) nounwind
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ret void
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}
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declare void @f2(%struct.S1* byval)
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declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind
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