forked from OSchip/llvm-project
50 lines
2.1 KiB
LLVM
50 lines
2.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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; RUN: llc -verify-machineinstrs -stop-before=ppc-vsx-copy -vec-extabi \
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; RUN: -mcpu=pwr7 -mtriple powerpc-ibm-aix-xcoff < %s | \
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; RUN: FileCheck %s
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;; Testing a variadic callee where a vector argument passed through ellipsis
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;; is passed partially in registers and on the stack. The 3 fixed double
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;; arguments shadow r3-r8, and a vector int <4 x i32> is passed in R9/R10 and
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;; on the stack starting at the shadow of R9.
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define <4 x i32> @split_spill(double %d1, double %d2, double %d3, ...) {
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; CHECK-LABEL: name: split_spill
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; CHECK: bb.0.entry:
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; CHECK: liveins: $r9, $r10
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; CHECK: [[COPY:%[0-9]+]]:gprc = COPY $r10
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; CHECK: [[COPY1:%[0-9]+]]:gprc = COPY $r9
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; CHECK: STW [[COPY1]], 0, %fixed-stack.0 :: (store 4 into %fixed-stack.0, align 16)
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; CHECK: STW [[COPY]], 4, %fixed-stack.0 :: (store 4 into %fixed-stack.0 + 4)
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; CHECK: LIFETIME_START %stack.0.arg_list
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; CHECK: [[ADDI:%[0-9]+]]:gprc = ADDI %fixed-stack.0, 0
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; CHECK: [[LXVW4X:%[0-9]+]]:vsrc = LXVW4X $zero, killed [[ADDI]] :: (load 16 from %ir.4)
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; CHECK: LIFETIME_END %stack.0.arg_list
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; CHECK: $v2 = COPY [[LXVW4X]]
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; CHECK: BLR implicit $lr, implicit $rm, implicit $v2
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entry:
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%arg_list = alloca i8*, align 4
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%0 = bitcast i8** %arg_list to i8*
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call void @llvm.lifetime.start.p0i8(i64 4, i8* nonnull %0)
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call void @llvm.va_start(i8* nonnull %0)
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%argp.cur = load i8*, i8** %arg_list, align 4
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%1 = ptrtoint i8* %argp.cur to i32
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%2 = add i32 %1, 15
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%3 = and i32 %2, -16
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%argp.cur.aligned = inttoptr i32 %3 to i8*
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%argp.next = getelementptr inbounds i8, i8* %argp.cur.aligned, i32 16
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store i8* %argp.next, i8** %arg_list, align 4
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%4 = inttoptr i32 %3 to <4 x i32>*
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%5 = load <4 x i32>, <4 x i32>* %4, align 16
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call void @llvm.va_end(i8* nonnull %0)
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call void @llvm.lifetime.end.p0i8(i64 4, i8* nonnull %0)
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ret <4 x i32> %5
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}
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declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture)
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declare void @llvm.va_start(i8*)
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declare void @llvm.va_end(i8*)
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declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture)
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