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https://github.com/RPCS3/llvm-mirror.git
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594049dc1a
Pass parameters properly in calls to such functions (pass all floats in integer registers), and handle va_start properly (allocate stack immediately below the arguments on the stack, to save the register arguments into a single continuous array). Differential Revision: https://reviews.llvm.org/D35006 llvm-svn: 307928
96 lines
2.6 KiB
LLVM
96 lines
2.6 KiB
LLVM
; RUN: llc < %s -mtriple=aarch64-pc-win32 | FileCheck %s
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define void @pass_va(i32 %count, ...) nounwind {
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entry:
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; CHECK: sub sp, sp, #80
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; CHECK: add x8, sp, #24
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; CHECK: add x0, sp, #24
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; CHECK: stp x6, x7, [sp, #64]
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; CHECK: stp x4, x5, [sp, #48]
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; CHECK: stp x2, x3, [sp, #32]
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; CHECK: str x1, [sp, #24]
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; CHECK: stp x30, x8, [sp]
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; CHECK: bl other_func
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; CHECK: ldr x30, [sp], #80
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; CHECK: ret
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%ap = alloca i8*, align 8
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%ap1 = bitcast i8** %ap to i8*
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call void @llvm.va_start(i8* %ap1)
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%ap2 = load i8*, i8** %ap, align 8
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call void @other_func(i8* %ap2)
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ret void
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}
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declare void @other_func(i8*) local_unnamed_addr
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declare void @llvm.va_start(i8*) nounwind
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declare void @llvm.va_copy(i8*, i8*) nounwind
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; CHECK-LABEL: f9:
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; CHECK: sub sp, sp, #16
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; CHECK: add x8, sp, #24
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; CHECK: add x0, sp, #24
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; CHECK: str x8, [sp, #8]
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; CHECK: add sp, sp, #16
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; CHECK: ret
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define i8* @f9(i64 %a0, i64 %a1, i64 %a2, i64 %a3, i64 %a4, i64 %a5, i64 %a6, i64 %a7, i64 %a8, ...) nounwind {
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entry:
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%ap = alloca i8*, align 8
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%ap1 = bitcast i8** %ap to i8*
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call void @llvm.va_start(i8* %ap1)
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%ap2 = load i8*, i8** %ap, align 8
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ret i8* %ap2
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}
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; CHECK-LABEL: f8:
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; CHECK: sub sp, sp, #16
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; CHECK: add x8, sp, #16
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; CHECK: add x0, sp, #16
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; CHECK: str x8, [sp, #8]
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; CHECK: add sp, sp, #16
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; CHECK: ret
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define i8* @f8(i64 %a0, i64 %a1, i64 %a2, i64 %a3, i64 %a4, i64 %a5, i64 %a6, i64 %a7, ...) nounwind {
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entry:
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%ap = alloca i8*, align 8
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%ap1 = bitcast i8** %ap to i8*
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call void @llvm.va_start(i8* %ap1)
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%ap2 = load i8*, i8** %ap, align 8
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ret i8* %ap2
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}
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; CHECK-LABEL: f7:
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; CHECK: sub sp, sp, #16
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; CHECK: add x8, sp, #8
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; CHECK: add x0, sp, #8
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; CHECK: stp x8, x7, [sp], #16
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; CHECK: ret
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define i8* @f7(i64 %a0, i64 %a1, i64 %a2, i64 %a3, i64 %a4, i64 %a5, i64 %a6, ...) nounwind {
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entry:
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%ap = alloca i8*, align 8
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%ap1 = bitcast i8** %ap to i8*
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call void @llvm.va_start(i8* %ap1)
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%ap2 = load i8*, i8** %ap, align 8
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ret i8* %ap2
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}
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; CHECK-LABEL: copy1:
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; CHECK: sub sp, sp, #80
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; CHECK: add x8, sp, #24
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; CHECK: stp x6, x7, [sp, #64]
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; CHECK: stp x4, x5, [sp, #48]
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; CHECK: stp x2, x3, [sp, #32]
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; CHECK: stp x8, x1, [sp, #16]
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; CHECK: str x8, [sp, #8]
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; CHECK: add sp, sp, #80
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; CHECK: ret
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define void @copy1(i64 %a0, ...) nounwind {
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entry:
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%ap = alloca i8*, align 8
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%cp = alloca i8*, align 8
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%ap1 = bitcast i8** %ap to i8*
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%cp1 = bitcast i8** %cp to i8*
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call void @llvm.va_start(i8* %ap1)
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call void @llvm.va_copy(i8* %cp1, i8* %ap1)
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ret void
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}
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