35 lines
1.7 KiB
LLVM
35 lines
1.7 KiB
LLVM
; RUN: opt < %s -dfsan -S | FileCheck %s --check-prefixes=CHECK,LEGACY
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; RUN: opt < %s -dfsan -dfsan-fast-16-labels=true -S | FileCheck %s --check-prefixes=CHECK,FAST
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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-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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; CHECK: @__dfsan_shadow_width_bits = weak_odr constant i32 [[#SBITS:]]
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; CHECK: @__dfsan_shadow_width_bytes = weak_odr constant i32 [[#SBYTES:]]
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define {i32, i32} @test({i32, i32} %a, i1 %c) {
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; LEGACY: [[AL:%.*]] = load i[[#SBITS]], i[[#SBITS]]* bitcast ([100 x i64]* @__dfsan_arg_tls to i[[#SBITS]]*), align [[ALIGN:2]]
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; LEGACY: [[PL:%.*]] = phi i[[#SBITS]] [ [[AL]], %T ], [ [[AL]], %F ]
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; LEGACY: store i[[#SBITS]] [[PL]], i[[#SBITS]]* bitcast ([100 x i64]* @__dfsan_retval_tls to i[[#SBITS]]*), align [[ALIGN]]
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; FAST: [[AL:%.*]] = load { [[ST:i[0-9]+]], i[[#SBITS]] }, { i[[#SBITS]], i[[#SBITS]] }* bitcast ([100 x i64]* @__dfsan_arg_tls to { i[[#SBITS]], i[[#SBITS]] }*), align [[ALIGN:2]]
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; FAST: [[AL0:%.*]] = insertvalue { i[[#SBITS]], i[[#SBITS]] } [[AL]], i[[#SBITS]] 0, 0
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; FAST: [[AL1:%.*]] = insertvalue { i[[#SBITS]], i[[#SBITS]] } [[AL]], i[[#SBITS]] 0, 1
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; FAST: [[PL:%.*]] = phi { i[[#SBITS]], i[[#SBITS]] } [ [[AL0]], %T ], [ [[AL1]], %F ]
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; FAST: store { i[[#SBITS]], i[[#SBITS]] } [[PL]], { i[[#SBITS]], i[[#SBITS]] }* bitcast ([100 x i64]* @__dfsan_retval_tls to { i[[#SBITS]], i[[#SBITS]] }*), align [[ALIGN]]
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entry:
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br i1 %c, label %T, label %F
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T:
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%at = insertvalue {i32, i32} %a, i32 1, 0
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br label %done
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F:
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%af = insertvalue {i32, i32} %a, i32 1, 1
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br label %done
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done:
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%b = phi {i32, i32} [%at, %T], [%af, %F]
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ret {i32, i32} %b
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}
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