107 lines
2.2 KiB
LLVM
107 lines
2.2 KiB
LLVM
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; RUN: llc -mtriple=aarch64-none-linux-gnu %s -o - -O1 -debug-only=consthoist 2>&1 | FileCheck %s
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; REQUIRES: asserts
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declare void @g(i64)
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; Single ORR.
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; CHECK: Function: f1
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; CHECK-NOT: Collect constant
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define void @f1(i1 %cond) {
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entry:
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call void @g(i64 -3)
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br i1 %cond, label %true, label %ret
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true:
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call void @g(i64 -3)
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br label %ret
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ret:
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ret void
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}
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; Constant is 0xBEEF000000000000, single MOVZ with shift.
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; CHECK: Function: f2
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; CHECK-NOT: Collect constant
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define void @f2(i1 %cond, i64 %p, i64 %q) {
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entry:
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%a = and i64 %p, 13758215386640154624
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call void @g(i64 %a)
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br i1 %cond, label %true, label %ret
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true:
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%b = and i64 %q, 13758215386640154624
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call void @g(i64 %b)
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br label %ret
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ret:
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ret void
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}
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; CHECK: Function: f3
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; CHECK: Collect constant i64 4294967103 from %a = and i64 %p, 4294967103 with cost 2
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define void @f3(i1 %cond, i64 %p, i64 %q) {
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entry:
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%a = and i64 %p, 4294967103
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call void @g(i64 %a)
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br i1 %cond, label %true, label %ret
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true:
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%b = and i64 %q, 4294967103
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call void @g(i64 %b)
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br label %ret
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ret:
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ret void
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}
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; CHECK: Function: f4
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; Collect constant i64 -4688528683866062848 from %a = and i64 %p, -4688528683866062848 with cost 2
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define void @f4(i1 %cond, i64 %p, i64 %q) {
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entry:
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%a = and i64 %p, 13758215389843488768
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call void @g(i64 %a)
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br i1 %cond, label %true, label %ret
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true:
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%b = and i64 %q, 13758215389843488768
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call void @g(i64 %b)
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br label %ret
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ret:
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ret void
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}
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; CHECK: Function: f5
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; Collect constant i64 88994925642865 from %a = and i64 %p, 88994925642865 with cost 3
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define void @f5(i1 %cond, i64 %p, i64 %q) {
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entry:
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%a = and i64 %p, 88994925642865
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call void @g(i64 %a)
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br i1 %cond, label %true, label %ret
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true:
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%b = and i64 %q, 88994925642865
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call void @g(i64 %b)
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br label %ret
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ret:
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ret void
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}
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; CHECK: Function: f6
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; Collect constant i64 -4688439692143754127 from %b = and i64 %q, -4688439692143754127 with cost 4
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define void @f6(i1 %cond, i64 %p, i64 %q) {
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entry:
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%a = and i64 %p, 13758304381565797489
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call void @g(i64 %a)
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br i1 %cond, label %true, label %ret
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true:
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%b = and i64 %q, 13758304381565797489
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call void @g(i64 %b)
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br label %ret
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ret:
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ret void
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}
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