48 lines
2.1 KiB
LLVM
48 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 (s32) into %fixed-stack.0, align 16)
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; CHECK: STW [[COPY]], 4, %fixed-stack.0 :: (store (s32) 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 (s128) from %ir.argp.cur.aligned)
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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 ptr, align 4
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call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %arg_list)
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call void @llvm.va_start(ptr nonnull %arg_list)
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%argp.cur = load ptr, ptr %arg_list, align 4
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%0 = ptrtoint ptr %argp.cur to i32
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%1 = add i32 %0, 15
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%2 = and i32 %1, -16
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%argp.cur.aligned = inttoptr i32 %2 to ptr
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%argp.next = getelementptr inbounds i8, ptr %argp.cur.aligned, i32 16
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store ptr %argp.next, ptr %arg_list, align 4
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%3 = inttoptr i32 %2 to ptr
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%4 = load <4 x i32>, ptr %3, align 16
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call void @llvm.va_end(ptr nonnull %arg_list)
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call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %arg_list)
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ret <4 x i32> %4
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}
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declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture)
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declare void @llvm.va_start(ptr)
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declare void @llvm.va_end(ptr)
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declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture)
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