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https://github.com/c64scene-ar/llvm-6502.git
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26e5285f9f
which is relevant with canonical IVs. Anything else being checked by these tests is already covered by early CSE. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139535 91177308-0d34-0410-b5e6-96231b3b80d8
77 lines
3.0 KiB
LLVM
77 lines
3.0 KiB
LLVM
; RUN: opt < %s -indvars -S -enable-iv-rewrite | FileCheck %s
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; No explicit integer multiplications!
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; No i8* arithmetic or pointer casting anywhere!
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; CHECK-NOT: = {{= mul|i8\*|bitcast|inttoptr|ptrtoint}}
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; Exactly one getelementptr for each load+store.
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; Each getelementptr using %struct.Q* %s as a base and not i8*.
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; CHECK: getelementptr %struct.Q* %s,
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; CHECK: getelementptr %struct.Q* %s,
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; CHECK: getelementptr %struct.Q* %s,
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; CHECK: getelementptr %struct.Q* %s,
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; CHECK: getelementptr %struct.Q* %s,
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; CHECK: getelementptr %struct.Q* %s,
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; CHECK-NOT: = {{= mul|i8\*|bitcast|inttoptr|ptrtoint}}
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; FIXME: This test should pass with or without TargetData. Until opt
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; supports running tests without targetdata, just hardware this in.
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n:32:64"
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%struct.Q = type { [10 x %struct.N] }
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%struct.N = type { %struct.S }
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%struct.S = type { [100 x double], [100 x double] }
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define void @foo(%struct.Q* %s, i64 %n) nounwind {
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entry:
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br label %bb1
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bb1:
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%i = phi i64 [ 2, %entry ], [ %i.next, %bb ]
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%j = phi i64 [ 0, %entry ], [ %j.next, %bb ]
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%t5 = icmp slt i64 %i, %n
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br i1 %t5, label %bb, label %return
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bb:
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%t0 = getelementptr inbounds %struct.Q* %s, i64 0, i32 0, i64 0, i32 0, i32 0, i64 %i
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%t1 = load double* %t0, align 8
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%t2 = fmul double %t1, 3.200000e+00
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%t3 = getelementptr inbounds %struct.Q* %s, i64 0, i32 0, i64 0, i32 0, i32 0, i64 %i
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store double %t2, double* %t3, align 8
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%s0 = getelementptr inbounds %struct.Q* %s, i64 13, i32 0, i64 7, i32 0, i32 1, i64 %i
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%s1 = load double* %s0, align 8
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%s2 = fmul double %s1, 3.200000e+00
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%s3 = getelementptr inbounds %struct.Q* %s, i64 13, i32 0, i64 7, i32 0, i32 1, i64 %i
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store double %s2, double* %s3, align 8
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%u0 = getelementptr inbounds %struct.Q* %s, i64 0, i32 0, i64 7, i32 0, i32 1, i64 %j
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%u1 = load double* %u0, align 8
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%u2 = fmul double %u1, 3.200000e+00
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%u3 = getelementptr inbounds %struct.Q* %s, i64 0, i32 0, i64 7, i32 0, i32 1, i64 %j
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store double %u2, double* %u3, align 8
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%v0 = getelementptr inbounds %struct.Q* %s, i64 0, i32 0, i64 0, i32 0, i32 1, i64 %i
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%v1 = load double* %v0, align 8
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%v2 = fmul double %v1, 3.200000e+00
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%v3 = getelementptr inbounds %struct.Q* %s, i64 0, i32 0, i64 0, i32 0, i32 1, i64 %i
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store double %v2, double* %v3, align 8
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%w0 = getelementptr inbounds %struct.Q* %s, i64 0, i32 0, i64 0, i32 0, i32 0, i64 %j
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%w1 = load double* %w0, align 8
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%w2 = fmul double %w1, 3.200000e+00
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%w3 = getelementptr inbounds %struct.Q* %s, i64 0, i32 0, i64 0, i32 0, i32 0, i64 %j
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store double %w2, double* %w3, align 8
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%x0 = getelementptr inbounds %struct.Q* %s, i64 0, i32 0, i64 3, i32 0, i32 0, i64 %i
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%x1 = load double* %x0, align 8
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%x2 = fmul double %x1, 3.200000e+00
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%x3 = getelementptr inbounds %struct.Q* %s, i64 0, i32 0, i64 3, i32 0, i32 0, i64 %i
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store double %x2, double* %x3, align 8
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%i.next = add i64 %i, 1
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%j.next = add i64 %j, 1
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br label %bb1
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return:
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ret void
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}
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