30 lines
783 B
LLVM
30 lines
783 B
LLVM
; RUN: opt -loop-unroll -unroll-threshold=2000 -S < %s | llc -march=r600 -mcpu=cypress | FileCheck %s
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; REQUIRES: asserts
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; CHECK: {{^}}alu_limits:
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; CHECK: CF_END
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%struct.foo = type {i32, i32, i32}
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define void @alu_limits(i32 addrspace(1)* %out, %struct.foo* %in, i32 %offset) {
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entry:
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%ptr = getelementptr inbounds %struct.foo, %struct.foo* %in, i32 1, i32 2
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%x = load i32, i32 *%ptr, align 4
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br label %loop
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loop:
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%i = phi i32 [ 100, %entry ], [ %nexti, %loop ]
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%val = phi i32 [ 1, %entry ], [ %nextval, %loop ]
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%nexti = sub i32 %i, 1
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%y = xor i32 %x, %i
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%nextval = mul i32 %val, %y
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%cond = icmp ne i32 %nexti, 0
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br i1 %cond, label %loop, label %end
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end:
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%out_val = add i32 %nextval, 4
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store i32 %out_val, i32 addrspace(1)* %out, align 4
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ret void
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}
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