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llvm-mirror/test/Instrumentation/DataFlowSanitizer/debug-nonzero-labels.ll
Tim Northover e5745c32fd IR: print value numbers for unnamed function arguments
For consistency with normal instructions and clarity when reading IR,
it's best to print the %0, %1, ... names of function arguments in
definitions.

Also modifies the parser to accept IR in that form for obvious reasons.

llvm-svn: 367755
2019-08-03 14:28:34 +00:00

28 lines
1.1 KiB
LLVM

; RUN: opt < %s -dfsan -dfsan-args-abi -dfsan-debug-nonzero-labels -S | FileCheck %s
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-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
declare i32 @g()
; CHECK: define { i32, i16 } @"dfs$f"(i32 %0, i32 %1, i16 %2, i16 %3)
define i32 @f(i32, i32) {
; CHECK: [[LOCALLABELALLOCA:%.*]] = alloca i16
%i = alloca i32
; CHECK: [[ARGCMP1:%.*]] = icmp ne i16 %3, 0
; CHECK: br i1 [[ARGCMP1]]
; CHECK: [[ARGCMP2:%.*]] = icmp ne i16 %2, 0
; CHECK: br i1 [[ARGCMP2]]
%x = add i32 %0, %1
store i32 %x, i32* %i
; CHECK: [[CALL:%.*]] = call { i32, i16 } @"dfs$g"()
; CHECK: [[CALLLABEL:%.*]] = extractvalue { i32, i16 } [[CALL]], 1
; CHECK: [[CALLCMP:%.*]] = icmp ne i16 [[CALLLABEL]], 0
; CHECK: br i1 [[CALLCMP]]
%call = call i32 @g()
; CHECK: [[LOCALLABEL:%.*]] = load i16, i16* [[LOCALLABELALLOCA]]
; CHECK: [[LOCALCMP:%.*]] = icmp ne i16 [[LOCALLABEL]], 0
; CHECK: br i1 [[LOCALCMP]]
%load = load i32, i32* %i
ret i32 %load
}