derek.holloway
7502bf64a4
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96 lines
3.3 KiB
LLVM
96 lines
3.3 KiB
LLVM
; RUN: opt -passes=inline %s -S | FileCheck %s
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target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
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target triple = "thumbv7m-arm-none-eabi"
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; CHECK-LABEL: void @doCalls
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define void @doCalls(ptr nocapture %p1, ptr nocapture %p2, i32 %n) #0 {
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entry:
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%div = lshr i32 %n, 1
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; CHECK: call void @LoopCall
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tail call void @LoopCall(ptr %p1, ptr %p2, i32 %div) #0
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%div2 = lshr i32 %n, 2
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; CHECK: call void @LoopCall
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tail call void @LoopCall(ptr %p1, ptr %p2, i32 %div2) #0
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; CHECK-NOT: call void @LoopCall
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tail call void @LoopCall(ptr %p2, ptr %p1, i32 0) #0
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; CHECK-NOT: call void @LoopCall_internal
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tail call void @LoopCall_internal(ptr %p1, ptr %p2, i32 %div2) #0
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%div3 = lshr i32 %n, 4
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; CHECK-NOT: call void @SimpleCall
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tail call void @SimpleCall(ptr %p2, ptr %p1, i32 %div3) #0
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ret void
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}
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; CHECK-LABEL: define void @LoopCall
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define void @LoopCall(ptr nocapture %dest, ptr nocapture readonly %source, i32 %num) #0 {
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entry:
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%c = icmp ne i32 %num, 0
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br i1 %c, label %while.cond, label %while.end
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while.cond: ; preds = %while.body, %entry
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%num.addr.0 = phi i32 [ %num, %entry ], [ %dec, %while.body ]
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%p_dest.0 = phi ptr [ %dest, %entry ], [ %incdec.ptr2, %while.body ]
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%p_source.0 = phi ptr [ %source, %entry ], [ %incdec.ptr, %while.body ]
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%cmp = icmp eq i32 %num.addr.0, 0
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br i1 %cmp, label %while.end, label %while.body
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while.body: ; preds = %while.cond
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%incdec.ptr = getelementptr inbounds i8, ptr %p_source.0, i32 1
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%0 = load i8, ptr %p_source.0, align 1
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%1 = trunc i32 %num.addr.0 to i8
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%conv1 = add i8 %0, %1
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%incdec.ptr2 = getelementptr inbounds i8, ptr %p_dest.0, i32 1
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store i8 %conv1, ptr %p_dest.0, align 1
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%dec = add i32 %num.addr.0, -1
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br label %while.cond
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while.end: ; preds = %while.cond
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ret void
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}
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; CHECK-LABEL-NOT: define void @LoopCall_internal
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define internal void @LoopCall_internal(ptr nocapture %dest, ptr nocapture readonly %source, i32 %num) #0 {
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entry:
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%c = icmp ne i32 %num, 0
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br i1 %c, label %while.cond, label %while.end
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while.cond: ; preds = %while.body, %entry
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%num.addr.0 = phi i32 [ %num, %entry ], [ %dec, %while.body ]
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%p_dest.0 = phi ptr [ %dest, %entry ], [ %incdec.ptr2, %while.body ]
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%p_source.0 = phi ptr [ %source, %entry ], [ %incdec.ptr, %while.body ]
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%cmp = icmp eq i32 %num.addr.0, 0
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br i1 %cmp, label %while.end, label %while.body
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while.body: ; preds = %while.cond
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%incdec.ptr = getelementptr inbounds i8, ptr %p_source.0, i32 1
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%0 = load i8, ptr %p_source.0, align 1
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%1 = trunc i32 %num.addr.0 to i8
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%conv1 = add i8 %0, %1
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%incdec.ptr2 = getelementptr inbounds i8, ptr %p_dest.0, i32 1
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store i8 %conv1, ptr %p_dest.0, align 1
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%dec = add i32 %num.addr.0, -1
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br label %while.cond
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while.end: ; preds = %while.cond
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ret void
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}
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; CHECK-LABEL: define void @SimpleCall
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define void @SimpleCall(ptr nocapture %dest, ptr nocapture readonly %source, i32 %num) #0 {
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entry:
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%arrayidx = getelementptr inbounds i8, ptr %source, i32 %num
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%0 = load i8, ptr %arrayidx, align 1
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%1 = xor i8 %0, 127
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%arrayidx2 = getelementptr inbounds i8, ptr %dest, i32 %num
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store i8 %1, ptr %arrayidx2, align 1
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ret void
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}
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attributes #0 = { minsize optsize }
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