Revert r302670 for the upcoming 5.0.0 release
This is causing failures when compiling clang with -O3 as one of the structures used by clang is passed by value and uses the fastcc calling convention. Faliures manifest for stage2 mips build. llvm-svn: 310704
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@ -6821,14 +6821,6 @@ MipsABIInfo::classifyArgumentType(QualType Ty, uint64_t &Offset) const {
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return getNaturalAlignIndirect(Ty, RAA == CGCXXABI::RAA_DirectInMemory);
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}
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// Use indirect if the aggregate cannot fit into registers for
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// passing arguments according to the ABI
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unsigned Threshold = IsO32 ? 16 : 64;
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if(getContext().getTypeSizeInChars(Ty) > CharUnits::fromQuantity(Threshold))
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return ABIArgInfo::getIndirect(CharUnits::fromQuantity(Align), true,
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getContext().getTypeAlign(Ty) / 8 > Align);
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// If we have reached here, aggregates are passed directly by coercing to
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// another structure type. Padding is inserted if the offset of the
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// aggregate is unaligned.
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@ -1,38 +0,0 @@
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// RUN: %clang_cc1 -triple mipsel-unknown-linux-gnu -S -emit-llvm -o - %s | FileCheck -check-prefix=O32 %s
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// RUN: %clang_cc1 -triple mips64el-unknown-linux-gnu -S -emit-llvm -o - %s -target-abi n32 | FileCheck -check-prefix=N32-N64 %s
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// RUN: %clang_cc1 -triple mips64el-unknown-linux-gnu -S -emit-llvm -o - %s -target-abi n64 | FileCheck -check-prefix=N32-N64 %s
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struct t1 {
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char t1[10];
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};
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struct t2 {
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char t2[20];
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};
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struct t3 {
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char t3[65];
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};
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extern struct t1 g1;
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extern struct t2 g2;
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extern struct t3 g3;
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extern void f1(struct t1);
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extern void f2(struct t2);
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extern void f3(struct t3);
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void f() {
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// O32: call void @f1(i32 inreg %{{[0-9]+}}, i32 inreg %{{[0-9]+}}, i16 inreg %{{[0-9]+}})
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// O32: call void @f2(%struct.t2* byval align 4 %{{.*}})
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// O32: call void @f3(%struct.t3* byval align 4 %{{.*}})
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// N32-N64: call void @f1(i64 inreg %{{[0-9]+}}, i16 inreg %{{[0-9]+}})
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// N32-N64: call void @f2(i64 inreg %{{[0-9]+}}, i64 inreg %{{[0-9]+}}, i32 inreg %{{[0-9]+}})
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// N32-N64: call void @f3(%struct.t3* byval align 8 %{{.*}})
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f1(g1);
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f2(g2);
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f3(g3);
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}
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