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llvm-mirror/test/CodeGen/AArch64/analyze-branch.ll
Tim Northover ca0f4dc4f0 AArch64/ARM64: move ARM64 into AArch64's place
This commit starts with a "git mv ARM64 AArch64" and continues out
from there, renaming the C++ classes, intrinsics, and other
target-local objects for consistency.

"ARM64" test directories are also moved, and tests that began their
life in ARM64 use an arm64 triple, those from AArch64 use an aarch64
triple. Both should be equivalent though.

This finishes the AArch64 merge, and everyone should feel free to
continue committing as normal now.

llvm-svn: 209577
2014-05-24 12:50:23 +00:00

232 lines
4.7 KiB
LLVM

; RUN: llc -mtriple=aarch64-none-linux-gnu < %s | FileCheck %s
; This test checks that LLVM can do basic stripping and reapplying of branches
; to basic blocks.
declare void @test_true()
declare void @test_false()
; !0 corresponds to a branch being taken, !1 to not being takne.
!0 = metadata !{metadata !"branch_weights", i32 64, i32 4}
!1 = metadata !{metadata !"branch_weights", i32 4, i32 64}
define void @test_Bcc_fallthrough_taken(i32 %in) nounwind {
; CHECK-LABEL: test_Bcc_fallthrough_taken:
%tst = icmp eq i32 %in, 42
br i1 %tst, label %true, label %false, !prof !0
; CHECK: cmp {{w[0-9]+}}, #42
; CHECK: b.ne [[FALSE:.LBB[0-9]+_[0-9]+]]
; CHECK-NEXT: // BB#
; CHECK-NEXT: bl test_true
; CHECK: [[FALSE]]:
; CHECK: bl test_false
true:
call void @test_true()
ret void
false:
call void @test_false()
ret void
}
define void @test_Bcc_fallthrough_nottaken(i32 %in) nounwind {
; CHECK-LABEL: test_Bcc_fallthrough_nottaken:
%tst = icmp eq i32 %in, 42
br i1 %tst, label %true, label %false, !prof !1
; CHECK: cmp {{w[0-9]+}}, #42
; CHECK: b.eq [[TRUE:.LBB[0-9]+_[0-9]+]]
; CHECK-NEXT: // BB#
; CHECK-NEXT: bl test_false
; CHECK: [[TRUE]]:
; CHECK: bl test_true
true:
call void @test_true()
ret void
false:
call void @test_false()
ret void
}
define void @test_CBZ_fallthrough_taken(i32 %in) nounwind {
; CHECK-LABEL: test_CBZ_fallthrough_taken:
%tst = icmp eq i32 %in, 0
br i1 %tst, label %true, label %false, !prof !0
; CHECK: cbnz {{w[0-9]+}}, [[FALSE:.LBB[0-9]+_[0-9]+]]
; CHECK-NEXT: // BB#
; CHECK-NEXT: bl test_true
; CHECK: [[FALSE]]:
; CHECK: bl test_false
true:
call void @test_true()
ret void
false:
call void @test_false()
ret void
}
define void @test_CBZ_fallthrough_nottaken(i64 %in) nounwind {
; CHECK-LABEL: test_CBZ_fallthrough_nottaken:
%tst = icmp eq i64 %in, 0
br i1 %tst, label %true, label %false, !prof !1
; CHECK: cbz {{x[0-9]+}}, [[TRUE:.LBB[0-9]+_[0-9]+]]
; CHECK-NEXT: // BB#
; CHECK-NEXT: bl test_false
; CHECK: [[TRUE]]:
; CHECK: bl test_true
true:
call void @test_true()
ret void
false:
call void @test_false()
ret void
}
define void @test_CBNZ_fallthrough_taken(i32 %in) nounwind {
; CHECK-LABEL: test_CBNZ_fallthrough_taken:
%tst = icmp ne i32 %in, 0
br i1 %tst, label %true, label %false, !prof !0
; CHECK: cbz {{w[0-9]+}}, [[FALSE:.LBB[0-9]+_[0-9]+]]
; CHECK-NEXT: // BB#
; CHECK-NEXT: bl test_true
; CHECK: [[FALSE]]:
; CHECK: bl test_false
true:
call void @test_true()
ret void
false:
call void @test_false()
ret void
}
define void @test_CBNZ_fallthrough_nottaken(i64 %in) nounwind {
; CHECK-LABEL: test_CBNZ_fallthrough_nottaken:
%tst = icmp ne i64 %in, 0
br i1 %tst, label %true, label %false, !prof !1
; CHECK: cbnz {{x[0-9]+}}, [[TRUE:.LBB[0-9]+_[0-9]+]]
; CHECK-NEXT: // BB#
; CHECK-NEXT: bl test_false
; CHECK: [[TRUE]]:
; CHECK: bl test_true
true:
call void @test_true()
ret void
false:
call void @test_false()
ret void
}
define void @test_TBZ_fallthrough_taken(i32 %in) nounwind {
; CHECK-LABEL: test_TBZ_fallthrough_taken:
%bit = and i32 %in, 32768
%tst = icmp eq i32 %bit, 0
br i1 %tst, label %true, label %false, !prof !0
; CHECK: tbnz {{w[0-9]+}}, #15, [[FALSE:.LBB[0-9]+_[0-9]+]]
; CHECK-NEXT: // BB#
; CHECK-NEXT: bl test_true
; CHECK: [[FALSE]]:
; CHECK: bl test_false
true:
call void @test_true()
ret void
false:
call void @test_false()
ret void
}
define void @test_TBZ_fallthrough_nottaken(i64 %in) nounwind {
; CHECK-LABEL: test_TBZ_fallthrough_nottaken:
%bit = and i64 %in, 32768
%tst = icmp eq i64 %bit, 0
br i1 %tst, label %true, label %false, !prof !1
; CHECK: tbz {{[wx][0-9]+}}, #15, [[TRUE:.LBB[0-9]+_[0-9]+]]
; CHECK-NEXT: // BB#
; CHECK-NEXT: bl test_false
; CHECK: [[TRUE]]:
; CHECK: bl test_true
true:
call void @test_true()
ret void
false:
call void @test_false()
ret void
}
define void @test_TBNZ_fallthrough_taken(i32 %in) nounwind {
; CHECK-LABEL: test_TBNZ_fallthrough_taken:
%bit = and i32 %in, 32768
%tst = icmp ne i32 %bit, 0
br i1 %tst, label %true, label %false, !prof !0
; CHECK: tbz {{w[0-9]+}}, #15, [[FALSE:.LBB[0-9]+_[0-9]+]]
; CHECK-NEXT: // BB#
; CHECK-NEXT: bl test_true
; CHECK: [[FALSE]]:
; CHECK: bl test_false
true:
call void @test_true()
ret void
false:
call void @test_false()
ret void
}
define void @test_TBNZ_fallthrough_nottaken(i64 %in) nounwind {
; CHECK-LABEL: test_TBNZ_fallthrough_nottaken:
%bit = and i64 %in, 32768
%tst = icmp ne i64 %bit, 0
br i1 %tst, label %true, label %false, !prof !1
; CHECK: tbnz {{[wx][0-9]+}}, #15, [[TRUE:.LBB[0-9]+_[0-9]+]]
; CHECK-NEXT: // BB#
; CHECK-NEXT: bl test_false
; CHECK: [[TRUE]]:
; CHECK: bl test_true
true:
call void @test_true()
ret void
false:
call void @test_false()
ret void
}