forked from OSchip/llvm-project
125 lines
4.4 KiB
LLVM
125 lines
4.4 KiB
LLVM
; REQUIRES: asserts
|
|
; RUN: opt -mcpu=thunderx2t99 -loop-unroll --debug-only=loop-unroll -S -unroll-allow-partial < %s 2>&1 | FileCheck %s
|
|
|
|
target triple = "aarch64-unknown-linux-gnu"
|
|
|
|
; CHECK: Loop Unroll: F[foo] Loop %loop.2.header
|
|
; CHECK: Loop Size = 19
|
|
; CHECK: Trip Count = 512
|
|
; CHECK: Trip Multiple = 512
|
|
; CHECK: UNROLLING loop %loop.2.header by 4 with a breakout at trip 0
|
|
; CHECK: Merging:
|
|
; CHECK: Loop Unroll: F[foo] Loop %loop.header
|
|
; CHECK: Loop Size = 18
|
|
; CHECK: Trip Count = 512
|
|
; CHECK: Trip Multiple = 512
|
|
; CHECK: UNROLLING loop %loop.header by 4 with a breakout at trip 0
|
|
; CHECK: Merging:
|
|
; CHECK: %counter = phi i32 [ 0, %entry ], [ %inc.3, %loop.inc.3 ]
|
|
; CHECK: %val = add nuw nsw i32 %counter, 5
|
|
; CHECK: %val1 = add nuw nsw i32 %counter, 6
|
|
; CHECK: %val2 = add nuw nsw i32 %counter, 7
|
|
; CHECK: %val3 = add nuw nsw i32 %counter, 8
|
|
; CHECK: %val4 = add nuw nsw i32 %counter, 9
|
|
; CHECK: %val5 = add nuw nsw i32 %counter, 10
|
|
; CHECK-NOT: %val = add i32 %counter, 5
|
|
; CHECK-NOT: %val = add i32 %counter, 6
|
|
; CHECK-NOT: %val = add i32 %counter, 7
|
|
; CHECK-NOT: %val = add i32 %counter, 8
|
|
; CHECK-NOT: %val = add i32 %counter, 9
|
|
; CHECK-NOT: %val = add i32 %counter, 10
|
|
; CHECK: %counter.2 = phi i32 [ 0, %exit.0 ], [ %inc.2.3, %loop.2.inc.3 ]
|
|
|
|
define void @foo(i32 * %out) {
|
|
entry:
|
|
%0 = alloca [1024 x i32]
|
|
%x0 = alloca [1024 x i32]
|
|
%x01 = alloca [1024 x i32]
|
|
%x02 = alloca [1024 x i32]
|
|
%x03 = alloca [1024 x i32]
|
|
%x04 = alloca [1024 x i32]
|
|
%x05 = alloca [1024 x i32]
|
|
%x06 = alloca [1024 x i32]
|
|
br label %loop.header
|
|
|
|
loop.header:
|
|
%counter = phi i32 [0, %entry], [%inc, %loop.inc]
|
|
br label %loop.body
|
|
|
|
loop.body:
|
|
%ptr = getelementptr [1024 x i32], [1024 x i32]* %0, i32 0, i32 %counter
|
|
store i32 %counter, i32* %ptr
|
|
%val = add i32 %counter, 5
|
|
%xptr = getelementptr [1024 x i32], [1024 x i32]* %x0, i32 0, i32 %counter
|
|
store i32 %val, i32* %xptr
|
|
%val1 = add i32 %counter, 6
|
|
%xptr1 = getelementptr [1024 x i32], [1024 x i32]* %x01, i32 0, i32 %counter
|
|
store i32 %val1, i32* %xptr1
|
|
%val2 = add i32 %counter, 7
|
|
%xptr2 = getelementptr [1024 x i32], [1024 x i32]* %x02, i32 0, i32 %counter
|
|
store i32 %val2, i32* %xptr2
|
|
%val3 = add i32 %counter, 8
|
|
%xptr3 = getelementptr [1024 x i32], [1024 x i32]* %x03, i32 0, i32 %counter
|
|
store i32 %val3, i32* %xptr3
|
|
%val4 = add i32 %counter, 9
|
|
%xptr4 = getelementptr [1024 x i32], [1024 x i32]* %x04, i32 0, i32 %counter
|
|
store i32 %val4, i32* %xptr4
|
|
%val5 = add i32 %counter, 10
|
|
%xptr5 = getelementptr [1024 x i32], [1024 x i32]* %x05, i32 0, i32 %counter
|
|
store i32 %val5, i32* %xptr5
|
|
br label %loop.inc
|
|
|
|
loop.inc:
|
|
%inc = add i32 %counter, 2
|
|
%1 = icmp sge i32 %inc, 1023
|
|
br i1 %1, label %exit.0, label %loop.header
|
|
|
|
exit.0:
|
|
%2 = getelementptr [1024 x i32], [1024 x i32]* %0, i32 0, i32 5
|
|
%3 = load i32, i32* %2
|
|
store i32 %3, i32 * %out
|
|
br label %loop.2.header
|
|
|
|
|
|
loop.2.header:
|
|
%counter.2 = phi i32 [0, %exit.0], [%inc.2, %loop.2.inc]
|
|
br label %loop.2.body
|
|
|
|
loop.2.body:
|
|
%ptr.2 = getelementptr [1024 x i32], [1024 x i32]* %0, i32 0, i32 %counter.2
|
|
store i32 %counter.2, i32* %ptr.2
|
|
%val.2 = add i32 %counter.2, 5
|
|
%xptr.2 = getelementptr [1024 x i32], [1024 x i32]* %x0, i32 0, i32 %counter.2
|
|
store i32 %val.2, i32* %xptr.2
|
|
%val1.2 = add i32 %counter.2, 6
|
|
%xptr1.2 = getelementptr [1024 x i32], [1024 x i32]* %x01, i32 0, i32 %counter.2
|
|
store i32 %val1, i32* %xptr1.2
|
|
%val2.2 = add i32 %counter.2, 7
|
|
%xptr2.2 = getelementptr [1024 x i32], [1024 x i32]* %x02, i32 0, i32 %counter.2
|
|
store i32 %val2, i32* %xptr2.2
|
|
%val3.2 = add i32 %counter.2, 8
|
|
%xptr3.2 = getelementptr [1024 x i32], [1024 x i32]* %x03, i32 0, i32 %counter.2
|
|
store i32 %val3.2, i32* %xptr3.2
|
|
%val4.2 = add i32 %counter.2, 9
|
|
%xptr4.2 = getelementptr [1024 x i32], [1024 x i32]* %x04, i32 0, i32 %counter.2
|
|
store i32 %val4.2, i32* %xptr4.2
|
|
%val5.2 = add i32 %counter.2, 10
|
|
%xptr5.2 = getelementptr [1024 x i32], [1024 x i32]* %x05, i32 0, i32 %counter.2
|
|
store i32 %val5.2, i32* %xptr5.2
|
|
%xptr6.2 = getelementptr [1024 x i32], [1024 x i32]* %x06, i32 0, i32 %counter.2
|
|
store i32 %val5.2, i32* %xptr6.2
|
|
br label %loop.2.inc
|
|
|
|
loop.2.inc:
|
|
%inc.2 = add i32 %counter.2, 2
|
|
%4 = icmp sge i32 %inc.2, 1023
|
|
br i1 %4, label %exit.2, label %loop.2.header
|
|
|
|
exit.2:
|
|
%x2 = getelementptr [1024 x i32], [1024 x i32]* %0, i32 0, i32 6
|
|
%x3 = load i32, i32* %x2
|
|
%out2 = getelementptr i32, i32 * %out, i32 1
|
|
store i32 %3, i32 * %out2
|
|
ret void
|
|
}
|