0676acb6fd
Should cover most of the tests for GVN, GVNHoist, GVNSink, GlobalOpt, GlobalSplit, InstCombine, Reassociate, SROA and TailCallElim that had not been updated earlier.
56 lines
2.0 KiB
LLVM
56 lines
2.0 KiB
LLVM
; Check if we can evaluate a bitcasted call to a function which is constant folded.
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; Evaluator folds call to fmodf, replacing it with constant value in case both operands
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; are known at compile time.
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; RUN: opt -passes=globalopt,instcombine %s -S -o - | FileCheck %s
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; CHECK: @_q = dso_local local_unnamed_addr global %struct.Q { i32 1066527622 }
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; CHECK: define dso_local i32 @main
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; CHECK-NEXT: %[[V:.+]] = load i32, i32* getelementptr inbounds (%struct.Q, %struct.Q* @_q, i64 0, i32 0)
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; CHECK-NEXT: ret i32 %[[V]]
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source_filename = "main.cpp"
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-none-linux-gnu"
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%struct.Q = type { i32 }
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$_ZN1QC2Ev = comdat any
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@_q = dso_local global %struct.Q zeroinitializer, align 4
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@llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @_GLOBAL__sub_I_main.cpp, i8* null }]
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define internal void @__cxx_global_var_init() section ".text.startup" {
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call void @_ZN1QC2Ev(%struct.Q* @_q)
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ret void
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}
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define linkonce_odr dso_local void @_ZN1QC2Ev(%struct.Q*) unnamed_addr #1 comdat align 2 {
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%2 = alloca %struct.Q*, align 8
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store %struct.Q* %0, %struct.Q** %2, align 8
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%3 = load %struct.Q*, %struct.Q** %2, align 8
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%4 = getelementptr inbounds %struct.Q, %struct.Q* %3, i32 0, i32 0
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%5 = call i32 bitcast (float (float, float)* @fmodf to i32 (float, float)*)(float 0x40091EB860000000, float 2.000000e+00)
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store i32 %5, i32* %4, align 4
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ret void
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}
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define dso_local i32 @main(i32, i8**) {
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%3 = alloca i32, align 4
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%4 = alloca i32, align 4
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%5 = alloca i8**, align 8
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store i32 0, i32* %3, align 4
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store i32 %0, i32* %4, align 4
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store i8** %1, i8*** %5, align 8
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%6 = load i32, i32* getelementptr inbounds (%struct.Q, %struct.Q* @_q, i32 0, i32 0), align 4
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ret i32 %6
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}
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; Function Attrs: nounwind
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declare dso_local float @fmodf(float, float)
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; Function Attrs: noinline uwtable
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define internal void @_GLOBAL__sub_I_main.cpp() section ".text.startup" {
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call void @__cxx_global_var_init()
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ret void
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}
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