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32875af6e3
Summary: Currently fast-isel-abort will only abort for regular instructions, and just warn for function calls, terminators, function arguments. There is already fast-isel-abort-args but nothing for calls and terminators. This change turns the fast-isel-abort options into an integer option, so that multiple levels of strictness can be defined. This will help no being surprised when the "abort" option indeed does not abort, and enables the possibility to write test that verifies that no intrinsics are forgotten by fast-isel. Reviewers: resistor, echristo Subscribers: jfb, llvm-commits Differential Revision: http://reviews.llvm.org/D7941 From: Mehdi Amini <mehdi.amini@apple.com> llvm-svn: 230775
43 lines
897 B
LLVM
43 lines
897 B
LLVM
; RUN: llc -mtriple=aarch64-apple-darwin -fast-isel -fast-isel-abort=1 -verify-machineinstrs < %s | FileCheck %s
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; CHECK-label: test_or
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; CHECK: cbnz w0, {{LBB[0-9]+_2}}
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; CHECK: cbz w1, {{LBB[0-9]+_1}}
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define i64 @test_or(i32 %a, i32 %b) {
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bb1:
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%0 = icmp eq i32 %a, 0
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%1 = icmp eq i32 %b, 0
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%or.cond = or i1 %0, %1
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br i1 %or.cond, label %bb3, label %bb4, !prof !0
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bb3:
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ret i64 0
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bb4:
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%2 = call i64 @bar()
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ret i64 %2
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}
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; CHECK-label: test_ans
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; CHECK: cbz w0, {{LBB[0-9]+_2}}
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; CHECK: cbnz w1, {{LBB[0-9]+_3}}
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define i64 @test_and(i32 %a, i32 %b) {
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bb1:
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%0 = icmp ne i32 %a, 0
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%1 = icmp ne i32 %b, 0
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%or.cond = and i1 %0, %1
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br i1 %or.cond, label %bb4, label %bb3, !prof !1
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bb3:
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ret i64 0
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bb4:
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%2 = call i64 @bar()
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ret i64 %2
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}
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declare i64 @bar()
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!0 = !{!"branch_weights", i32 5128, i32 32}
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!1 = !{!"branch_weights", i32 1024, i32 4136}
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