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https://github.com/RPCS3/llvm-mirror.git
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42052632ff
Relands commit 433c8d950cb3a1fa0977355ce0367e8c763a3f13 with fixes for MIPS. Similar to D102742, specifying the stack alignment via CodegenOpts means that this flag gets dropped during LTO, unless the command line is re-specified as a plugin opt. Instead, encode this information as a module level attribute so that we don't have to expose this llvm internal flag when linking the Linux kernel with LTO. Looks like external dependencies might need a fix: * https://github.com/llvm-hs/llvm-hs/issues/345 * https://github.com/halide/Halide/issues/6079 Link: https://github.com/ClangBuiltLinux/linux/issues/1377 Reviewed By: tejohnson Differential Revision: https://reviews.llvm.org/D103048
105 lines
3.5 KiB
LLVM
105 lines
3.5 KiB
LLVM
; RUN: llc < %s -stack-symbol-ordering=0 -tailcallopt -relocation-model=static -code-model=medium -mtriple=x86_64-linux-gnu -mcpu=opteron | FileCheck %s
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; Check the HiPE calling convention works (x86-64)
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define void @zap(i64 %a, i64 %b) nounwind {
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entry:
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; CHECK: movq %rsi, %rdx
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; CHECK-NEXT: movl $8, %ecx
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; CHECK-NEXT: movl $9, %r8d
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; CHECK-NEXT: movq %rdi, %rsi
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; CHECK-NEXT: callq addfour
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%0 = call cc 11 {i64, i64, i64} @addfour(i64 undef, i64 undef, i64 %a, i64 %b, i64 8, i64 9)
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%res = extractvalue {i64, i64, i64} %0, 2
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; CHECK: movl $1, %edx
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; CHECK-NEXT: movl $2, %ecx
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; CHECK-NEXT: movl $3, %r8d
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; CHECK-NEXT: movq %rax, %r9
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; CHECK: callq foo
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tail call void @foo(i64 undef, i64 undef, i64 1, i64 2, i64 3, i64 %res) nounwind
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ret void
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}
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define cc 11 {i64, i64, i64} @addfour(i64 %hp, i64 %p, i64 %x, i64 %y, i64 %z, i64 %w) nounwind {
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entry:
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; CHECK: leaq (%rsi,%rdx), %rax
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; CHECK-NEXT: addq %rcx, %rax
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; CHECK-NEXT: addq %r8, %rax
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%0 = add i64 %x, %y
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%1 = add i64 %0, %z
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%2 = add i64 %1, %w
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; CHECK: ret
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%res = insertvalue {i64, i64, i64} undef, i64 %2, 2
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ret {i64, i64, i64} %res
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}
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define cc 11 void @foo(i64 %hp, i64 %p, i64 %arg0, i64 %arg1, i64 %arg2, i64 %arg3) nounwind {
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entry:
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; CHECK: movq %r15, 40(%rsp)
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; CHECK-NEXT: movq %rbp, 32(%rsp)
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; CHECK-NEXT: movq %rsi, 24(%rsp)
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; CHECK-NEXT: movq %rdx, 16(%rsp)
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; CHECK-NEXT: movq %rcx, 8(%rsp)
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; CHECK-NEXT: movq %r8, (%rsp)
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%hp_var = alloca i64
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%p_var = alloca i64
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%arg0_var = alloca i64
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%arg1_var = alloca i64
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%arg2_var = alloca i64
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%arg3_var = alloca i64
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store i64 %hp, i64* %hp_var
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store i64 %p, i64* %p_var
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store i64 %arg0, i64* %arg0_var
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store i64 %arg1, i64* %arg1_var
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store i64 %arg2, i64* %arg2_var
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store i64 %arg3, i64* %arg3_var
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; Loads are reading values just writen from corresponding register and are therefore noops.
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%0 = load i64, i64* %hp_var
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%1 = load i64, i64* %p_var
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%2 = load i64, i64* %arg0_var
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%3 = load i64, i64* %arg1_var
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%4 = load i64, i64* %arg2_var
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%5 = load i64, i64* %arg3_var
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; CHECK: jmp bar
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tail call cc 11 void @bar(i64 %0, i64 %1, i64 %2, i64 %3, i64 %4, i64 %5) nounwind
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ret void
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}
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define cc 11 void @baz() nounwind {
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%tmp_clos = load i64, i64* @clos
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%tmp_clos2 = inttoptr i64 %tmp_clos to i64*
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%indirect_call = bitcast i64* %tmp_clos2 to void (i64, i64, i64)*
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; CHECK: movl $42, %esi
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; CHECK-NEXT: jmpq *(%rax)
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tail call cc 11 void %indirect_call(i64 undef, i64 undef, i64 42) nounwind
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ret void
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}
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; Sanity-check the tail call sequence. Number of arguments was chosen as to
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; expose a bug where the tail call sequence clobbered the stack.
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define cc 11 { i64, i64, i64 } @tailcaller(i64 %hp, i64 %p) #0 {
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; CHECK: movl $15, %esi
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; CHECK-NEXT: movl $31, %edx
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; CHECK-NEXT: movl $47, %ecx
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; CHECK-NEXT: movl $63, %r8d
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; CHECK-NEXT: popq %rax
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; CHECK-NEXT: .cfi_def_cfa_offset 16
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; CHECK-NEXT: jmp tailcallee
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%ret = tail call cc11 { i64, i64, i64 } @tailcallee(i64 %hp, i64 %p, i64 15,
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i64 31, i64 47, i64 63, i64 79) #1
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ret { i64, i64, i64 } %ret
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}
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!hipe.literals = !{ !0, !1, !2 }
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!0 = !{ !"P_NSP_LIMIT", i32 160 }
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!1 = !{ !"X86_LEAF_WORDS", i32 24 }
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!2 = !{ !"AMD64_LEAF_WORDS", i32 24 }
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@clos = external constant i64
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declare cc 11 void @bar(i64, i64, i64, i64, i64, i64)
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declare cc 11 { i64, i64, i64 } @tailcallee(i64, i64, i64, i64, i64, i64, i64)
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!llvm.module.flags = !{!3}
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!3 = !{i32 2, !"override-stack-alignment", i32 8}
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